GameStop is starting to clear out most of the Wii games in the B&M stores, I'll keep updating the recent notable drops, though you can see the full list here.
Yes, some of these have been a part of the previous sales, but these should be the new base prices to work with from now on for future B2G1 deals.
Guilty Gear XX Accent Core (no mention if the Plus variant is included or not)
Wii Music (If the CN code isn't used, good for 20+10 CN coins)
Sam and Max 2: Beyond Time and Space *New Drop*
Opoona *New Drop*
$9.99 (not a great price, but not bad if you combine with an inevitable future B2G1 sale)
Scarface: The World is Yours *New Drop*
Wii Play Motion with Wii Remote Plus (New copies applicable only)