Never stayed there, but I did stay at Vegas World the first time I went there on business, that was crap, then Stardust, that wasn't much better, stayed at Mirage which was ok, Treasure Island, not bad, Aladdin (new one), Luxor, New York, New York, MGM Grand, Ballys, Aria, Palms, and a few others. Must be five years since I was there.
When I first went, Vegas was cheap and cheerful, tacky, and you could get all-you-can-eat buffet breakfast for $1.99 at most casino's and Steak dinner for about 7 quid. They just wanted to get you on the building, then it slowly changed and had Gordon Ramsey restaurants and stuff and it became really, really expensive.
Even the most basic night clubs will charge you 50 quid to get in these days. The famous ones, with famous DJ's, cost more. And you have to stand all night, if you want to sit down at a (roped off) table, it costs a fortune, I think the cheapest one at Cosmopolitan was 3 grand.