there's alot to do up there at night. Heres a few popular spots...
-Lakeside casino = dollar drinks every night
-Monte Blue Casino(formerly Ceasars) often has big name performances(bands, comedians etc.) and a few new clubs, but I havent been there yet.
-Harrahs = Club Vex (formerly Altitude), the comedy club is pretty good too.
-Dinner/Booze cruise @ the Lake on the Tahoe Queen or Ms. Dixie
-Kelanis= seafood and sushi
-Chart House= fine dining