Because dude, it costs $80 to get my Cube fixed.  I can buy a new one and get a free game for $60 more, plus i get another controller.  If you ask me that is what you call a deal.  Besides, being away at college makes it hard to bring my Cube home when I have short breaks.  Now i just have to grab a game or two and i can keep myself busy when im home for the weekend.  I know the cube is extremely portable, but its still a pain to pull apart all the connections just to play for a weekend.  Now i dont have that concern once i get my old one fixed.