Spoiler, yes the Wii remotes work on Wii U.
terzaghi, just be mindful of Amazon Wiimotes. I'm also looking for extra Wiimotes and several comments on Amazon warn of counterfeit Wiimotes. It's not worth saving the money, get the real ones with Plus built in.
I tried to snag the Walmart Deal today for the Wii Play with Motion Plus for $15 but sold out online. Then I went to the local store and they don't honor the online price.
Also, I highly recommend signing up for Club Nintendo online. I just used my points today to get a Gold nunchuck a la Zelda.
Take a look at deals for the older Wii games. They're everywhere, especially today.