im flying out for new years 4 nights. my flight is $300 and my hotel suite is $200, but three nights are comped. ill have two plasma's in my room and some other stuff, so im sure u could find a cheaper deal than that. Buffets are expensive these days compared to the old stories you might have heard. They will run ya $20-25 a person for dinner, but they are nice. lots of selections crab legs, roast beef, ham, etc etc.
i never really leave the stip unless its for a certain club im going to, but you can still find places like chipolte, mcdonalds, and others on the stip if u want to eat real cheap. Drinks are expensive as balls if your not gambling. jagers bombs run $12-15 at clubs, beers are like $6-8. Bottle service is around $200+ and no worth it for a $30 bottle of sky vodka.