Gotta add my 2 cents to this, even though it's the same as everyone else's opinion -- BUY, BUY, BUY! $70 for a complete Samba is absolutely worth it. Even if you don't want another one for yourself, you'd have no problem selling it.
I had one long ago, but sold it before I got into collecting. Man, I still regret doing that. Maybe Sega will release a version for the Wii someday...