Best Buy is selling Sonic & SEGA All-Stars Racing for $20. The site does not specify if this is a permanent price drop or a sale. It might be a good idea to pick up Sonic & SEGA All-Stars Racing while this deal is here if you have not experienced the game yet.
This deal is only active for the PS3, XBOX 360 and Wii versions of the game. If you plan on getting one of the HD versions you might have to wait a while, Best Buy says both the PS3 and XBOX 360 versions are backordered.
If you are still unsure about Sonic & SEGA All-Stars Racing, go read the SEGAbits review. Sonic & SEGA All-Stars Racing is a good buy for $20.
[ EDIT: Just wanted to add this. If you are dead set on getting one of the HD versions you can snag them for $28 at Amazon. ]
[Source: I4U NEWS]