Actually, it makes me think some nixie tubes might be used for some cool case mods. To report the system load or something similiar. Truth be told, I admire case mods, but I doubt I would ever do it. The clear sides and lit innards that seem popular would just show off a collection of dust bunnies in my case. I really like this one mod where it was a big metal cylinder with outter liquid filled tubes and a red led read out on the front. It looked like a binary bomb from a movie. But where do you put a round case? Not on the desk, and if I put it on the floor, I would be tripping over it. I think case mods are something I will just be admirring from afar.