I'm a collector, but just not a 100% full blown one. For American TG16 games, I usually make sure it has the jewel case and instructions but I don't care if it doesn't have the cardboard box or HuCard sleeve and for Japanese PCE games, I don't care about registration or spine cards or anything, just the jewel case and instructions, and well game of course too. Also for systems that sell games with cardboard boxes only, I usually just skip the box, like NES and SNES.