From my review of systems they are frequently located in duel function rooms, dens, living room… etc where aesthetics are of greater priority than sound. When shared the guy can buy more and more expensive stuff but not mess up the room decor, well other than putting too much stuff in it. Or, too small dedicated room and the desire for a grand system capable of filling a small auditorium.
I have done this. I wanted to be a mountaineer when in high school… I saved up for a sleeping bag good to -20F, perfect for Nepal. I spent so many nights over the years sweating myself to sleep in Colorado… Big dreams, modest reality..