I am extremely pleased with my audio system and have been for years. Upgrades happen, but they're rare. I buy most equipment new and don't replace any of it casually.
I'm still using my Infinity IRS Beta speaker system. I kept my ARC SP-11 Mk. II preamp in use until I just couldn't live without a remote anymore, so I bought an ARC Ref 5SE. That gives you an idea of my system's slow evolution.
VPI TNT III/VPI SDS turntable/with SME V/ ARC Ref 2SE phono stage. Crown, Tandberg and Nakamichi tape; Bryston BDA-3 and BDP-3 digital. Dedicated AC lines/CJ, ARC and Bryston amplifiers.
I'm retired now but have been a music lover forever and an audiophile since I was a teen. It's easier to justify audio's high prices when you're in it for the long term. I keep my cars for a long time, too, but I've had a bunch since I bought my McIntosh MR-80 tuner 40 years ago. Those cars have long since been crushed, I'm sure, but the Mac still satisfies. That's value, even though the $2,000 that it cost me then would be worth more than $6,500 today.