There are "entertaining" games (world of goo, deBlob, mercury meltdown, sports/sports resort), there are party games (Wario, monkey ball, brawl), there are family games (hasbro game night, a bunch of the party games, movie games like ice age 2), there are decent rpgs (tales of symphonia, okami which I haven't played more than 10 min yet, Twilight princess), fitness games (wii fit/plus, ea active)
The Wii really has a lot to bring to the table...but I agree, the games don't necessarily suck me in like my SNES did. That being said, N64 only had a few games I liked (Pilotwings, Quest 64, Zelda, Mario 64, Kart, blast corps) and the playstation only had a few I liked (twisted metal, legacy of kain). I fail to see what people are doing when they sit around playing consoles all day. Halo for 10 hours? CoD? really?
My opinion anyway. Plenty of good games for hte wii, you just need to name your expectation and find the game that fits it.