I do a fair amount of hotel breakfast buffet, generally comped due to program status. I'm not a fan of most ethnic buffets, and the food service sanitation background from working in restaurants when I was younger gives me pause. Suburban Americanized-Chinese buffets really turn me off, but a good and busy Indian buffet is fine.
What I do enjoy about once a quarter is a mid-scale casino lunch buffet, where I can go just after the rush and have a leisurely lunch and get some work done. A less expensive one such as Green Valley Ranch outside of Vegas isn't going to have tremendous variety, but for $10 including tip I can fashion myself a nice salad, a sandwich using freshly carved roast beef or turkey, some sort of roasted vegetables or pasta, and some cookies or a brownie.