I got the GameBoy Advance Emulator. Some great titles on it.
Speaking of... I remember back in 2003 I was on my way to college and saw them for the first time on a bus stop ad. I thought that they looked slick (this is the SP model). It was a flip (although only one screen), and had an awesome metallic finish. They have aged gracefully and still look good today.
The first time I played it, I remember I played Crash Bandicoot on a demo model in store somewhere, it was awesome.
They're going up in price as they become more and more rare. If you have one, hold onto it.