If you parted with your extensive assortment of Transformers, American Girl Dolls, and Garbage Pail Kids cards for a mere pittance at your mother’s garage sale a couple of decades back, you might now be regretting it deeply. These nostalgic toys from the ’80s have surged in value, potentially enough to finance the purchase of a brand-new DeLorean.

The real Ghostbusters firehouse headquarters

The Ghostbusters firehouse stands out as one of the most awesome workplaces ever, which explains why it’s been highly sought-after as a playset—and remains so today. A firehouse with its original box typically sells for $100 to $200, but a toy in excellent condition could command prices as high as $600. There’s nothing eerie about that.