I'll never understand why someone with access to the internet wouldn't think to look up some mint, sealed, twenty-year-old toys on Google before listing them for some random price on Craigslist. Insane. Even then, you'd think the flood of offers would alert them to the fact that they're sitting on a treasure before agreeing to a sale.
I want to open them so badly.
OK, here's what you should do: put Magical Chase up for auction, make $5,000, take a vacation, open the rest of the games, and live happily ever after.
No wait...first tell Alexsessesdou that you'll sell Magical Chase to him for $700, then change your mind and do all of that other stuff.
Anyway, nice haul, welcome to the forums, and open those games!