I'm embarassed to admit-- I love me a good buffet, as long as the quality is there. Any time I'm in Las Vegas, I try to stop at my fave buffet there, at the Wynn. (They have a green pea risotto that is AMAAAAAAZING.)
And for you L.A. Buffer Lovers: there's a new "Vegas Seafood Buffet" open in Hollywood, a block west of the Chinese Theater. It's the sister restaurant to the same thing in Glendale... and it's really good. They just opened last week and it's $20 for dinner. Great selection of seafood (of course) but also a good teppanyaki station (you know, grilled in front of you, like Benihana), Brazilian churrasco station, and excellent desserts including a chocolate fountain with fresh fruit for enrobing. ;-)