I don't collect boxes, but I do want to have something physical that I can put on a shelf. I don't like these oversized boxes that were standard up to ten years ago, I also don't care for oversized collector boxes. The standard DVD and bluray casings are mighty fine, though. And steelbooks are truly wonderful.
I'm cool with games coming in jewel cases, considering I have a few racks for those. The DVD-style cases are just stupid, though. But it seems all the console manufacturers have gone to that format, so naturally PC game manufacturers had to follow suit.