Please don't take this as downing the product: it looks really cool and probably works like a dream, but what I do is buy some good-sized rubbermaid storage containers with the pop on lids and cut a door with scissors...costs about 6.00 all told and I can open the lid from above to collect eggs. Now, the upside to the fowlstuff boxes is that you can easily mount them to the wall, but with a little innovation and some redneck "rigging", I can do the same with my rubbermaid boxes without having anything shipped...
Again, no offense, so please don't take it as such....I just am a very frugal person who tries to use what I have on hand already or can acquire very cheaply. Also, I feel you, Gritsar on the covered cat litter boxes: I frequent yard sales and have picked up several recently for <5 dollars each.