I'm Jim from NJ, USA. I have two systems; the one I started in college when I dropped out and used the balance in my student loan account to buy my first receiver and turntable. And one in the basement man cave that I started in 2015 when I retired. The former has been relatively stable since the new millennium. The later is an example of my susceptibility to addiction.
My Music collection is currently over 780 LPs, CDs, SACDs, DVD-As, HDCSs, and a few Blue Ray discs and downloads. I restrict myself to two channels only. That is my 'religion.'