I thought United came the closest to monetizing the check ins. We (husband and I) got emails advertizing car rentals, restaurants or shops in the airport. Maybe the hotels should have been doing that-sending happy hour vouchers or something.

I am still trying to figure out how Topguest made their money. Did they buy and resell miles/points or just provide the software as they appeared to do for UA?

I think the hotels did gain a lot of new accounts with this promo they wouldn't normally have gotten and they now have a lot of new emails to send their promos to which deal with booking rooms.

Does anyone know how much longer PC, Doubletree and Virgin have left on their contracts?