I have a Gameboy Color.  I'm looking to move up.  Short questions:
1)  Are the graphics on the Advance a considerable jump up from the
Gameboy Color, other than the wider screen?
2)  Are the graphics on the DS pretty comparable to the Advance?  I
hear it has capabilities for more colors but that Advance games show up
kind of dark on the DS.

Longer story:
I was leaning toward a PSP, but I was disturbed by the longer load
times and shorter battery life.  Especially the longer load times.  I
get impatient waiting for the load times on the Playstation 2.  I then
noticed the games on DS looked more interesting to me, plus it was
cheaper.

So then I started leaning toward the DS but I'm not sure how much the
extra screen and stylus would be worth to me.  I was almost certainly
going to go with the DS because it played Advance games also, but then
I heard the Advance games didn't look that good on the DS.  Now I
wonder if I might just be happy with the Advance and save even a few
more dollars.  Do you think the extra screen on the DS is worth it?