What the hell is wrong with this world? Why would anyone throw away or sell a Dreamcast? It has so many exclusive games. Capcom vs. SNK , Street Fighter 3 (all of them), Soulcaliber, Grandia II, Skies of Arcadia and Shenmue! Plus so many other great fighting games for it like KOF 98, 99, Sf Alpha 3, Marvel vs. Capcom 2 (fun when high), Jojo's Bizaree Adventure, Last Blade 2., DOA 2(ok game) Lots of other games that psx may have but its better on dreamcast. Mark of the wolves is coming out soon and so is capcom vs. snk 2. SHenmue 2 is also on the way this year.
Do what you want. I always keep my systems. I have Nintendo, Super Nintendo, Sega Genesis, Sega Nomad, Sega Dreamcast, Sony Playstation, and Gameboy.
Dreamcast may not be in production but I doubt you've played all the great fighters, racing games, sport games and the few but good rpg. Why does everyone need the most current thing on the market and while doing so forget their old system and library of games.
If you can't appreciate a Dreamcast how can you be a Neo Geo fan? Thats old hat too right?