The value of Ambassador when compared to Titanium depends entirely on where you travel, when you travel and why you travel. The step up from Titanium to Ambassador may feel incremental because of the limited additional benefits but it is actually the biggest step up. Every status up to and including Titanium can be obtained with basically no loyalty, a credit card and a couple of stays is enough to get anyone chasing status to Titanium. Ambassador is the only status that requires loyalty (due to the spend requirement). A hotel will often have 10x as many Titanium members staying per night as Ambassadors. As upgrades are typically granted in status order, being in the much smaller pool of Ambassador guests drastically reduces the competition you have for upgrades.

The key to understanding the value of Ambassador is understanding the business model of hotels: most hotels aren't running at capacity at all times, which is bad, because most of a hotel's costs are fixed, marginal costs are relatively small. Above all else, hotels need to get people into rooms. Hotel operators choose to join the Marriott program because provides a customer base, a hotel pays a small cut to Marriott and in return they have access to a tens of millions of loyal Marriott customers but hotels still rely on happy, returning customers and their reviews. So, from a hotel's perspective, if they have a bunch of empty suites and guests that are spending a lot of time in hotels (Ambassador members) they can benefit from putting the guest into the suite (upgrade = happy guest, happy review) and the cost to the hotel is minimal.

note: you will often see people complaining that prior to check in, they checked the website to confirm that the hotel had a suite available, and therefore they expected the hotel to upgrade them to it. A hotel will not typically give out their last suite(s) because of the opportunity cost. If someone is willing to come along and pay cash for a suite, then to hell with status members, cash is king. For that reason, most hotels will keep at least one suite available for a cash buyer who comes along. Do not rely on the website listing a room as available as an indicator of whether or not the hotel will give it out as an upgrade.

The value you get out of Ambassador depends entirely on how you utilise the above information. I probably have the most nights out of anyone in this thread for 2024 and of those, 50% of my paid nights in 2024 were upgraded (~170 upgraded nights). I think the cash value of those upgrades exceeds $100,000 USD (but I don't track that, it's an estimate). Personally the novelty of upgrades has worn off so I don't optimise for them much any more, I reckon I could get 75% of my nights upgraded if I were to make that my focus.

Anyway, here's the strategy for optimising value of Ambassador status:

* Choose hotels with a large number of rooms
* Choose hotels with a high proportion of suites (15%+)
* Choose hotels that aren't obviously going to be busy (e.g: don't choose a hotel next to a stadium on a Taylor Swift concert night)
* Choose new build hotels (that haven't yet established a reputation independent of their Marriott brand association)
* Choose hotels that don't have a majority rich client base (hoping for an upgrade at a Ritz-Carlton in New York is pointless)
* Choose to travel outside of peak season
* Don't book long consecutive stays, break your stay up into a few stays of a few nights each
* Some hotels join the Marriott program with no intention of actually giving out upgrades because on principle they hate giving away free suites (even if they have them available) so check reviews to understand if a hotel does actually give out upgrades

The reason to break up longer stays is because it is much less likely for a hotel to have a single room available contiguously. If you book a 28 night hotel stay, but a suite is only available for 27 of those nights, you will not receive the suite for any nights because a red line for a hotel is kicking a guest out of a room, they will only allocate a room to you if they can do it for the entirety of your stay. If you break up your stay into smaller stays, there's a chance you'll need to move room but in my experience, hotels will do their best to keep you in the same room (and therefore, maintain the upgrade) because it's easier for them (they don't need to do a room changeover) and rewards your loyalty (you extended your stay!).

(The one important note with this approach is that you should not "extend" via the front desk, instead, "extend" your stay a few days before it ends via Marriott.com by booking a brand new stay and then check in via the app the moment it becomes available so that when the hotel are organising rooms, they will have the maximum amount of time (48 hours) to try and keep you in the same suite. Also, you can see in the app if your next stay has been awarded the upgrade (look at the room type) which is helpful for knowing if you need to pack your bags, or if you can just go down and check out and then check back in.)

If you travel last minute to popular destinations during peak season and stay at small hotels then the value of being Ambassador will be, basically, nothing. If you travel to places at times where hotels have rooms sat empty, the value of your Ambassador membership could far exceed the cash you're paying for your rooms. New York on New Years Eve: worthless. Bangkok in May (outside of tourist season): worthfull. You could be an Ambassador who stays 150 nights per year in Marriott hotels, spending $150k/year, and get $0 value from the status. You could be an Ambassador who stays 365 nights per year at Marriott hotels, spending just $23,001 and get $100k value from the Ambassador status. The value entirely depends on how you play.

Also keep in mind that the value of status is being eroded over time. As the ancient Chinese proverb goes: the best time to be a Marriott Bonvoy Ambassador was 20 years ago, the second best time is today. Make hay while the sun shines. You (and I) are not Marriott's customers, hotels are Marriott's customers, and hotels more than anything want to be at capacity, which is when they don't have anything to give us. We are basically getting the most value from our status when Marriott is failing their customers. As Marriott get better at making money for their member hotels, the value of our status will decrease.