no hotel check-in at mccarran?

Does anybody out there know why the major hotels removed their check-in desks from McCarran Airport's baggage claim area? I ask only because I thought this was a great idea when I noticed it a few years ago. I actually used it last year when check into Harrah's during my summer trip. It was nice to be able to go directly to your room instead of checking in at the hotel itself. It struck me as a nice amenity. Perhaps there wasn't enough traffic to warrant the cost of rental, personnel and resources to operate a satellite check-in desk.

McCarran's Web site only notes MGM Grand's airport check-in desk but I don't recall seeing it when I was there in May. But the baggage claim area at McCarran has been under expansion, so who knows.