Dragon Ball Z TCCG (old style before GT came out) collectors sales costs
I’ll borrow an answer from The Street.


  The collectible market is a tricky one, and a lot of what people believe will be valuable winds up becoming completely worthless (remember that '90s Beanie Baby craze?). The sector evolves over time, and interests -- and generations -- change.


The basics of supply and demand. You unfortunately selected a collectible that has little demand.