I assume ENglish (or maybe American) version.

OP is comparing prices offered on Expedia/hotels.com or Agoda to Japanese sites. EN = English. For Expedia Group and Booking Holdings (owners of Agoda) "US" might be a better label.

Yup. Booking Holdings also owns booking.com and Priceline.

Agoda's roots are in SE Asia- HQ in SIN/SG, developers in BKK & SIN. I remember when the domestic business hotels & ryokans were mostly offering room inventory on JP travel agency websites. So many direct reservations seem to use https://www.489ban.net/ I think some clever people at Agoda/Booking sent in the multilingual (and culturally Japanese business skilled) sales people about Japan & convinced a lot of business hotels to list on Agoda/Booking, likely with the inventory management interface in Japanese and integrating with some of the big systems like 489ban. It gradually had so many JP hotels listed which still weren't on Expedia at the time and AirBnB style properties.

Booking.com HQ is in AMS. Wikipedia brought up the payments delays to accommodations in 2023 https://en.wikipedia.org/wiki/Booking.com and cited an interview where "Hakone Airu" said 60% of their bookings were from booking.com https://newsdig.tbs.co.jp/articles/-/770269?display=1

It's interesting to see which international web platforms get some Japan market share. Wolt, one of the food delivery gig platforms, is Finnish and was acquired by DoorDash in 2022. It isn't Demae-can (which I believe needs JP phone number to register & JP language ability for app based orders) or UberEats (US) market share but I had the chance to use it in Tohoku.

I know that prices for hotel rooms have gone up significantly , but oh my goodness , $150 for the Shinagawa Prince......Anyway get these prices while you still can , the whole area is being redeveloped including ALL the different Prince Hotel variants. UR / Seibu Holdings / Keikyu / Toyota amongst others will redevelop the approximately 11 hectares of land.

If I remember correctly, the Keiko train goes directly to HND terminal 3, no changes, right? I have not been able to decipher the online train schedule, especially the frequency in the morning. I have 10:45 am departure, so leaving at 8 am should be not to oenerous I hope.

Keikyu? There are both direct no transfer and one with a transfer at Keikyu Kamata https://japantravel.navitime.com/en/...-01-30T08%3A00

Frequency in the morning for the Keikyū Main Line from Shinagawa to HND T3 = every 12 minutes.

My 2 cents the Hotel Fontaine Kayabacho Tokyo is very good for the money and very convenient.

1. The Tokyo City Air Terminal is a 5 minute walk away which runs buses to and from Haneda and Narita airports all day.

2. Centrally located in Tokyo, Kayabacho station has direct access to the Hibiya and Tozai subway lines to go most places in the city without transferring.
Tokyo Station, Ginza, Akihabara, Tokyo Tower, Imperial Palace, Tsukiji, Roppongi, Ebisu, Ueno

3. The Sumida River is within a 5 minute walk and provides gorgeous views and trail to run in the mornings

8 a.m. is in the middle of the rush hour, if it is on weekdays it is not the best time of the day to get on commuter trains or subways with large luggage or big backpacks. Sundays and Saturdays should not be that bad, but HND is a major airport for Tokyo, even in early morning of Sundays there are a lot of people heading to/from HND on Keikyu line monorail.

Just a note above- the Monorail and Keikyu line are separate entities. But I would second what you said and would always recommend the monorail from Hamamatsucho. It is designed for airport commutes, with luggage racks and if you take the express trains, there is less commuter traffic on it. Much better than taking the Keikyu from Shinagawa.

Shinagawa Tobu Hotel is very inexpensive for mid Nov booking (compared to nearby hotels). Any recent updates?
TIA.

funnily enough I stayed there recently and was quite impressed. It’s a business hotel but clean and quiet

Thank you, might give it a try.

Will be in Tokyo in early September and currently trying to decide between the Hyatt Regency Tokyo, ANA InterContinental Tokyo, and Pullman Tokyo Tamachi (mentioned way upthread) - all of them are $350-375 all-in per night (refundable rate, breakfast included).

Priorities: easy transit to/from HND, close to train or subway, quality breakfast buffet, modern room design, good water pressure in the shower...

Budget is flexible - totally fine to splurge a bit more for much nicer, or save a bit for about as nice.

Edit: Looks like the ANA InterContinental is the most annoying to get to (transfer required), airport limo bus stops right at the Hyatt Regency, and the Pullman is right on the Asakusa/Keikyu Airport line with no transfer needed.

Edit2: Last year I stayed at the Mitsui Garden Hotel Toyosu Premier, and at about half of the rates above, it was totally fine - on the airport limo line (to both HND and NRT), connected to subway underground, decent breakfast. AI compared all these and its vote was for Pullman.

Not sure how asking about three hotels, all at the same 50,000jpy+ a night rate, is within the spirit of this thread.

In early September the Miyako City Hotel is available for 20,000jpy a night.