Last weekend I was at the GamesCom in Cologne and I have to tell you, NeoGeo and Dreamcast are NOT DEAD!
I played Fast Striker (released december 2010) on a NeoGeo MVS - connected was a CRT TV, turned 90° so I played the game in 3:4 - awesome! What a shame, I didn't take a photo.
While the cardridge for NeoGeo costs 439 € and is limited to 150-200 worldwide, the Dreamcast version is much cheaper.
Here's a game my friends and I used to play back when we were younger, always had a blast playing it.