Man, I'm so glad I picked this up used from my local Eb Games on a pure whim for $15. Came with the CD and everything. I love my GBA SP, but being able to play on a big screen is so awesome. Best part? I'm able to use it with my GBA ROM cart so I can play the fan translation of Mother 3. It's hit or miss when it comes to getting it to start (requires more than one restart in order for the GBA player to detect it), but when it does work, it's glorious.
Speaking of which, I should continue playing it once I finish off Skyward Sword.