Well, I pulled the trigger. Made an offer of $300 and the dude took it. I was willing to go up to $400. The games were all pretty common, but they were the ones I was looking for. In fact, 2 were so forgettable that I don't even remember what they are.
It has all 10 slots filled with SMB 1-3, Dr. Mario, Double Dragon, Mike Tyson's Punch-out!!, Contra, TMNT, and 2 more that I can't remember. I'm super pumped on it! I can't wait to bring it home Monday!