I made that decision a while ago. I told myself if Pidgeot ever got an EX card, I would bling out my whole deck and I said that back during black and white. Just need two more DCE now. For the most part, most of the cards will carry over to other decks. The decision is easier to make once you have a pet deck. I'll be playing my Pidgeot deck till it rotates so I have time to spend with the cards before I remove them from the deck.