I saw that thing on a SEMA video, too. My impression was that once again, designing something to be "the ultimate" rarely meets the original goals, and often just becomes bloated and far too expensive.
I've seen aircraft mechanics use A frame pegboards, here's a couple of versions that I found on the interwebs. Totally impractical if you value floor space, but in a hanger maybe a good way to keep track of the tools. Cheap, too. The commercial one is 400 bucks, the homemade one could be made for a few bucks depending on what kind of crap you have laying around the shop.
Then there's this slidey thing that someone invented that might be handy if your work is at a station and you don't need to roll the cart.
I'm still fine with the look and usefulness of a regular 3 box chest.