I used to have a Boltz rack too, but projecting forwards based on my rate of media acquisition, I just found it to be untenable in the long run. I'd rather spend that money on getting more titles
As an alternative, I decided to try out this sleeving system from a company called DiscSox (
http://www.discsox.com ). Granted, while not as sexy as a media display rack or shelving unit, it does fit the bill quite nicely.
I sleeve the discs, and instead of using the flip-tray they have, I used tin photo-boxes from Cost Plus (they have a nice label window on the front) and store about 75 or so discs in one tin (standing up, just like the discsox photos). I simply sorted them alphabetically for easy location.
I find it a better method than using those CD booklets (or DVD booklets) since I get to keep the artwork. As for where I then store these photo-tins full of DVDs, I shelve them (yes, it still ultimately comes back to shelves) in this narrow hallway linen cabinet. They fit perfectly and will allow me to store at least a thousand titles in a space that would normally only handle 200 or so.
Don't get me wrong, I like sexy racks too (as mentioned, I DID get myself one of those larger Boltz racks). I just found it too expensive to keep getting more racks as the media selection increased.