We chat about videogames and videogame accessories.

Hmmm...well, for my part, having owned both a DS Lite and a GBA SP, I've always preferred to play my GBA games on my SP - mostly reasons like portability and weight. My SP fits where my DS does not, essentially. But in addition to that, because I've grossly overused my DS much more than my SP (my GBA game library consists of one game), my DS battery is now just about dead. So actually, not much choice when you get right down to it.