I didn't know that the prices of Chaos packs were such a bargain, after hearing this information I'm even thinking about buying some more, I have 14 packs so far, without having bought any, all of them coming from rewards when I was lucky enough to get one. I don't know off the top of my head how many Chaos packs I've opened so far, but I think it's quite a considerable amount for me to have a good amount of cards.