Wow thats a lot of hotels for the airport...
I don't know many airports with three hotels within spitting distance of the terminal!
Then if you add the new Hilton being built at Parkway Station and the Premier Travel Inn near the retail park, there is actually five hotels within about a mile of the terminal!
I remember the Holiday Inn Express had a big extension to their building within about a year of it opening, so I suppose their must be substantial demand. Hotel operators don't go building multi-million pound hotels om wimm!