I've bought both and usually sell one when I am done playing whatever game I wanted the system for, bad habit I guess. I've put more hours into the DS simply because of GBA games really.
I play my gba in bed, need to pick up a DS again. Maybe it's laziness but I would rather fire up my gba in bed than pick up a controller and sit in front of a TV and play something else.
I fall into the "I can swim if my life depended on it." category. We never had a pool and we would only visit the public pool every once in awhile as a kid.
ok so pretty much the same as the snes. I never played it on the GBA and since I finished up Super Mario World on the GBA, I have been wanting to play Yoshi's Island on there as well.