Not sure if I should be proud or embarrassed but I have four systems.
--one in my dedicated listening room
--one in my lower level living area
--one in the upstairs living area which also serves as 2 channel "home theater"
--a fourth option for private listening when my wife is asleep is a turntable/dedicated headphone based system all housed on a nice Salamander rack with a built in drawer that is great for housing all my turntable goodies.