The way it is, you spend x scoops on cards, get x/4 cards for those scoops, and what cards those are exactly, has a touch of random in it – you can’t just buy a dozen bumholes or a dozen shields or whatever; not without also ending up with about as many (if not a lot more) Shotguns, Thiefs, Destroyers etc.

This is a Good Thing™ – it prevents people from being able to convert their x/4 scoops directly into 10*(x/4) scoops removed from the person with the most scoops.