Nice one. Okay,
that I could justify keeping MISB...

But all mine are opened, and very few kept in the boxes, just because I like to play with them. The only ones that I do
usually keep in the boxes are my RiD Brave Max and my reissue Powermaster Prime. All the others are kept out.
Most of the boxes get thrown straight out, although I'll usually cut off the back panel or anything else of interest. Some boxes I keep, though; so far Alts/BTs, Japanese bots (including Jap reissues, my MP Convoy, Superlink and GF stuff etc), anything else I feel is somehow 'special' (and no,
I'm not quite sure what my criteria are).