I own a lot of the Mario games but not Mario Kart. I've been thinking about buying it. What are people's opinions on it? Is it fun/worth the money? I've been saving money but I don't know if I want to spend it all on the game because I will need a second controller (so I can play with my friends, I have 3 and need a fourth). I found this item, is it a good deal? http://www.ebay.com/itm/280837629006?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1558.l2649