Here's a thought: My mother had some absolutely fabulous purses and because we were a military family always on the move, she kept them stored in boxes. Over the years, she would only take them out if she were using them and then put them right back.
About 5 years ago, she moved into a new home with these great closets (I'm modeling my master bedroom/bath/closets after hers
when we build our lakehouse!), and put the bags in their boxes all on shelves. She didn't do as many social functions after my dad died, so she didn't take the bags out as much.
So last summer we are going through her closets and getting rid of stuff and started opening up these boxes. Many - but not all - of the bags were practically ruined. The beaded ones had deteriorated, leather ones had started to do something that resembled rot but it was called something else according to the guy we took them to. Nylon bags and many cloth bags had become brittle.
Some were saved but most were tossed. She took them to a bag repair man and he told her to never ever ever put a handbag in a box or Rubbermaid container (guess that's pretty common) as they DO need to breathe.
I have all my LV boxes (few that they are!) and stack them on my closet on a shelf. I just like to look at the boxes, too.