[packs]

If you buy one cent packs you can usually see the single card through the wrapper. So if you're worried about temptation and blowing your money, buy an expensive one cent pack, shine a bright light on it, and then decide if you're going to open it for the card inside, or leave it be if it's a common. That way you either get a card you want or you get a neat pack in its original state with peace of mind that you aren't missing anything.