...usually talking about items that haven't been opened or are extremely close to mint condition. ESPECIALLY for pokemon cards, or any trading cards in general. To even get top price for them you HAVE to get them professionally graded. And even then, to get to the higher prices on the rare cards they have to grade either an 8 or 9 out of 10. Which is pretty much along the lines of you pulled a pack off a store shelf, opened it, and sent it in to be graded. Unless you knew how to keep cards in good condition--which you can find instructions on how to do that on places like Youtube. Also the older they are the more valuable they are, so don't really expect a rare from today's packs to go for about the same as decks from 10 or more years ago.