I've been working with microcomputers since the late 1970's (Ohio Scientific with tape drive, Tandy TRS-80, Heathkit with CPM, Apple II's, Lisa, Macs, early PC's, PDP's, Amdahl mainframes with punch cards

, Sun, HP, and Apollo workstations, NeXT computers, CPM, DOS, Unix, OS/2, all versions of Windows). I've also done a large amount of IT stuff. I'm totally comfortable with building a PC, but doing it these days is to me drudgery, *especially* installing Windows.
I don't want to do that especially for other people if I want to get them a computer. I don't want to buy the parts, build it, install the OS, test it, box it, and ship it. I prefer to order it and have it shipped.