I once bought a Tsojconth for $1.95. I don't feel bad about it for two reasons:
1. I had no idea what it was worth at the time, and I only found the Acaeum because I ended up buying it and wondering about it years later.
2. I bought it from the same place that gave me pennies on the dollar for my massive D&D collection back when I needed to sell it all for rent money. I figure I broke even. Karma rules.