True.

At the same time, many of us who want one want to buy one because we don't have the skills or facilities to build it ourselves, which would tend to prevent building a larger box to house this one.

I understand the shipping problem, though. How about also designing an optional exterior case that this could fit into that's shipped unassembled. Then we could go and purchase some Gorilla Glue to put it together with. (It's all reconstituted wood, right, so no worries about expansion and contraction?) It needn't be any taller, so six sides with a hole in the front, a hole in the back, and a dado on the inside of the top and bottom to align the unit you've already made would make sense.

Of course, maybe no one else cares, and I could probably do that on my own, not to mention I'd consider using it at work (where I'd have to figure out a proper locking method).