It looks like Club Nintendo's lineup of digital games really is going to be staggered going forward, as Mario Tennis has been replaced by Bonsai Barber on WiiWare for 150 coins. The game is normally $10, and is a fairly well regarded title, so this is actually a decent deal.
When you look at Bonsai Barber, your first inclination may be to yell "SHOVELWARE," but it's actually a pretty decent game. If you have an open mind, and you're willing to drop 150 coins on a game for a system that will be replaced in a few months without a guaranteed digital transfer method, you can't really go wrong.
Bonsai Barber [Club Nintendo]