There are hobbies and then there are obsessions. Like a gambler who can never win enough to the bank robber who can never get enough, this can be seen everywhere. Throw in an audience and it becomes more than self reinforcing, bordering on addictive, and can be dangerous, not to mention damaging.
I think you're doing just fine at your present pace. Speaking for myself, I haven't bought a new component since 2013 (not counting speaker cables) and am looking forward to a new piece of gear that should last me just as long, if not longer.
Like you alluded to, the "been there, done that" crowd sounds like nothing more than feigned bragging rights (for the most part). There are some here who eschew that attitude and their advice is easy to parse and take. You'll know it when you hear it by the way they say it.
All the best,
Nonoise