Owning my personal mainframe is a long-held dream of mine, but practically, it wouldn't make a lot of sense unless somebody would let me put it into their datac

Owning my personal mainframe is a long-held dream of mine, but practically, it wouldn't make a lot of sense unless somebody would let me put it into their datacenter. My apartment is on the second floor, so a) I would not be able to get it upstairs and b) the floor would probably collapse under the weight. Plus, it is pretty big and would make my living room kind of ... crowded. And then, there is the electricity... And even if I somehow could solve all these problems, I would still need to attach a storage server to it, which kind of has the same problems. So I envy this person, a lot, but realistically, I would not want to buy one for myself. (IIRC, during the S/390 days, IBM built a 4U mini-mainframe one could rack-mount. There also was the P/390, which was a single-board implementation that came with one CPU, a channel controller and 128 or 256 MB RAM, all on a PCI card - I think it was meant for developers. Sadly, IBM has given up on small-ish mainframes...)