Way, WAY TOO much in the opinion of the general public. In this forum with all its eclectic cohort of forum participants, it’s probably still quite modest.
I heartily “thinned out the herd” already this past summer as I precondition from my wife to further contemplated changes and upgrades.
I still have three 2-channel audio systems in practice ranging from $2,000 to $7,000 to $50,000, along with a full 7.1 high-end HT system with discrete high-end YBA power amps and discrete AV preamp/processor driving ML speakers in my mancave.
the reality: I spend 90+% of my listening time to my “A” system ….ya just can’t beat dem HARBETHs.