Bad overpriced purchases you've made? We've all done them

I bought a CIB North American Bravely Default on 3DS for $70 early this year. At the time there were barely any out for sale that weren't world editions, and I bit the bullet and hit buy it now on Ebay because I thought it would be one of those games that would skyrocket in price, and $80 or so is about my limit.

Now I see all kinds of non world editions on Ebay for about $50.