Someone on arachnoboards asked people with lots of bugs what their setups look like.
I go with almost pure functionality since i have so many bugs and used to have relatively little space. Here is part of my response:
it also has the benefit of double containing all your cages and increasing the normal level of er, hidey-ness all the bugs experience, to hopefully lower their daily levels of like, distress.
in the last 4-5 seconds of this cellphone vid you can see my "new" way of doing things, that i've been doing for 9-12 months now, when i ran out of room.
http://www.youtube.com/watch?v=o7gwuL5NOYk
i don't know how many bugs i have now. thousands and thousands of roaches, and probably like 200 little baby bugs and another 100 bugs out of the small 1-2oz living space size. at least half of those are adult cents, scorps, and a few adult tarantulas (which you can see in the earlier part of the vid)
oh, another benefit of the supercontainer method is that your smaller cages are more earthquake resistant
the downside is that unless you use very clear cages and VERY clear supercontainers you don't have everythign on display anymore. but most bugs suck as display animals if they are caged well, so you just keep a few "lookers" out and that's that