I think it’s space (the receiver is bulky and difficult to place), and looks — it’s common for one member of a household to be enthusiastic about sound and mess

I think it’s space (the receiver is bulky and difficult to place), and looks — it’s common for one member of a household to be enthusiastic about sound and messing with wires, and for another to be enthusiastic about interior design. I hope people are not as helpless with technology as you think. Also, you can pay someone to deal with wires.