According to the Gamestop website, and corroborated by Amazon and Kotaku, the Klonoa remake for the Wii is due to ship on 5/5, but my local Gamestop stores are already selling it at the price of thirty dollars. Not a bad deal all around. Of course, I picked it up.
I'm not sure if this is a company wide phenomenon, but if you're interested in the game, it might be worth your time to call around. And, for what it's worth, it's fantastic.