I've been reading inside the threads of different posts and different groups more often that people approach a scenario where (for example), they make Plat on Marriott at mid-year, so they go then to Hilton to make their DDiamond level and they'll have two "highest levels" for the next year.

Or same with airlines.

I'm seeing this more and more from some random posts or chatter with colleagues at work.

My question is htat i don't understand it? If i can control "who i buy from" ... why would i ever not want to consolidate all my miles/points into a single loyalty program?

Now when i say single - i mean that i use 1 Air Carrier and 1 Hotel program ... but i do everything i can to dump into those programs, and i don't spread across the hotels, regardless of how many different tiers i could reach.

Anywone want to help me undrestand the real benefits of getting two top tiers. (take marriott for example, they're are everywhere across the US > so it probably isn't becuase they only cover 1/2 the US and hilton does the other half) ... i'm at odds with myself if i'm doing it wrong.

thanks.