Yep I do take care of the boxes! One of the first collectable things I bought was an Assassins Creed II Black Edition. It came in a windowed box and was exclusive to where I bought it, when i got it I immediately opened it to remove the game and statue and the art book..... after about a month the box ended up under my bed. Soon after I was cleaning my room and reached down between my bed and the wall trying to retrieve the box, I tried to force it out and ended up tearing the box, an action I regret to this day, ever since that box I have wrapped and stored every box off a collectable I have ever received, and now sometimes I leave them unopened to appreciate value. Like my VI Avengers Promo and VII Battle Damaged.
A few months ago I bought a ACII: Black Edition NIB and have kept it safe ever since, never to see the light of day again.
"Sire, the Box, shall we destroy it?"
"If only we could, but its power is too great. Bury it deep. Somewhere no one will ever find it."