Don't wait that long, Spak-Spang. Today, I picked up Fire Emblem, Battalion Wars and Chibi-Robo for $15 each and a second copy of Donkey Kong: Jungle Beat (with Bongos) for $20.
You need to get out there now if you want some of these deals.
Now, while I'm willing to agree that these price drops are just to clear out inventory, picture a store like Wal*Mart having one of those PDQ cardboard stands by the Electronics Department on the day the Wii comes out, full of AAA GameCube games (with a big splash on them that say they also play on the Wii) for $20 (or less). Just a thought