If you really have a tight budget just stick to buying the Wii games you want, I would advise you to save up more money for a PS3, although the start cost of a ps3 is not too bad, once you start buying all of the quality games for it, it soon becomes expensive, this month alone I had to chose between WKC(it is not as bad as reviews say) and HR, and next month I have to choose between GOW III, FF XIII, ROF, SO4.
Eventually I will get all the games, but not even I can afford them all, and I already have 16+ PS3 games.
it's the future of handheld
PS VITA = LIFE
The official Vita thread http://gamrconnect.vgchartz.com/thread.php?id=130023&page=1