I'm the opposite. My friends and I have been playing the Wii more than classic games. Wii Sports, Zack & Wiki, Mario Kart Wii, Pinball Hall of Fame: The Williams Collection, Dr. Mario Online Rx, and World of Goo are fantastic.
Of course, there's Super Mario Galaxy, de Blob, Boom Blox, Pro Evolution Soccer, Call of Duty: World at War, Rock Band 2, and plenty of other fun games, too!
The best part is, many great Wii games cost under $35 at release (including WiiWare).