The big problem with DVDs etc are the cases.  I have a 1500 odd collection and most are in soft jackets inside cellophane envelopes made for the size of the sleeves.  It's about a (small) fridge size of space for all them.  Box sets stay as box sets and I don't have many anyway.  I even whipped up a web based catalogue for them.

I don't watch TV so it's nice to have them there.