This might sound a little kooky, but you may have no other options: Try bartering your way to a Wii U. On the whole we’ve transformed into a society that doesn’t use the archaic exchange system anymore, but some people are still open to bartering,
A couple of years back there was a man who traded a paperclip all the way up to a house. If he could get a house, you can get a Wii U by bartering. He made sure that he got something a little better every time he traded with someone else: a paperclip became a pen, which became a doorknob, that then became a camping stove--and so on. This took him a whole year to work up to a house, so I think it’s possible you’ll be able to do it in less time with some smarts.
Got an old GameBoy brick lying around somewhere, maybe? Now is the time to use it, and again, a website like Craigslist can help. Or, track down those folks who have taken to lamenting their purchase on forums. They'll probably be happy to offload their purchase for some raisins and a skein of yarn. At the very least, bartering might make for a good story (which someone might pay you for!).