I am ultimately disappointed. You are free to not buy the enhanced version and still play your Wii version of a VC game, but transferring Wii property over to a Wii U is kind of a hassle and that's way too much to get a dollar off something I pretty much already have. Maybe sell the enhancements for a dollar instead. (Although if you want to be a cheapskate, you could just pirate the VC games off your Wii using homebrew and then get the dollar off whatever you wanted whether or not you originally bought it.)
I've heard they're going to have save states and button mapping in this version of VC, so that, Miiverse communities, and playing on the gamepad are probably the main enhancements. Virtual Console's always been OPed to me, sooo just get to work on those interface speed ups, thanks.