Simple question. Do you buy a pack a week? 2? 3? How about once a month or so? I have about 5 full bicycle decks that I use, with the oldest about a month old. I really want to do tricks that require tearing up a card or having a gimmicked card, but I keep thinking to myself "I just bought them!" How often do you buy cards, and how do you decide which one becomes the gimmicked deck?