Well that's shady business, but you only have yourselves to blame if you pay the 60 pounds.
My advice? Take your $90, and go find 4 good old games you missed out on. Here's some suggestions, Assassin's Creed, Supreme Commander, HAWX, BioShock, Two Thrones, The Orange Box, FarCry Instincts: Predator, and Splinter Cell: Chaos Theory. All of which you can find for less than $20 New. And these games aren't any less fun because they're old. Hell, even if you're skeptical whether or not you'll like it, what have you got to lose? $10 if you sell it back? Who knows, you might even find a new favorite genre.