I have actually been thinking of buying a Gameboy SP now that you can actually see the screen. My brother had one of the original GB Advanced and it played it for 20 seconds and then never touched it again. It was so ridiculous that you could not even see the screen unless you were under bright ligh which then reflected in your face. That thing was awful and didn't deserve to sell.
Back to the subject, I saw that Nintendo was releasing SMB3 on it and that was on of the best games ever, that is the only reason I want one.