For those of us who haven't haunted these forums for years/decades, sometimes posting a question or observation that's been trod upon before we arrived results in olde tymers grumbling about "this has been talked about" before, belittle what has been posted, and then grumbling further why the "hobby" of hi-fi enthusiasts is dying off. Only recently, in the last 5 years, have I been at a point in life where I can upgrade my system to have a better quality mid-fi system. I don't have the luxury of $, space, or time to search for the next best higher-end components to get me to some magical point where I think/feel the music sounds so amazing but only willing to listen to "audiophile" tracks because the system reveals too much.
I'm all about enjoying my music and not obsessing about gear. So it's great that you've reached that point where you're happy with your path. I'm on an upgrade path for my speakers and a better integrated amp. After that, I won't have any real reason to continue upgrading other than when/if something breaks. I want to enjoy all my records/CDs/digital albums regardless of their master quality.
Much like cycling, there are those (usually guys) who get seriously into the sport and spend loads of cash on high-end carbon bikes, components, etc, etc and yet don't ride any faster than they would have on a high-quality steel-framed bike. I know this because I've ridden with them. I have nice bikes but they're not exotic. I love to ride them, work on them, and upgrade bits and pieces as needed. Their purpose, to me, is to ride and enjoy getting outside for me time. It's not to obsess about the bike itself where I'm riding and thinking about "what if" upgrade options the entire time.