I have yet to play the first one, so its not really an issue for me. I don't really see the Wii U being able to do anything unique for a game like Bayonetta, so I doubt it will stay an exclusive for long. It's kind of getting to a point where having a title exclusive to one system isn't very smart, especially if it's something that isn't already guaranteed to sell, like Halo or Gears of War.
If I'm wrong then I probably won't be ever playing it. I hardly have any games for my Wii, so unless the Wii U gets a lot of great games, I won't be getting one.