Around here, unless you're lucky enough to find one from good will, NES/SNES systems tend to go for $50. So that's not a bad price really, with games it's relatively fair and you got some uncommon games.

I would have just walked away from the woman though and never returned, you either sell it to the person in front of you or on eBay, you can't do both, and you cannot attempt to do both. So she was being screwy from the very beginning, at that point I would have just tried to find one elsewhere, especially when she tried to sell the games to other people. Just, stupid.