Hi! Does anybody know the approx. value of a POP5 Seiries Mew d, this one has the Pokeball on the back on upside-down. From anything I've read it meets all the qualifiacations of a real card and doesn't appear to be counterfeit. If it's woth $20 I'm happy, but I see regualr mew pop5s going on ebay for $10... Thanks!