A couple of years ago I finally found my perfect system after decades in this hobby and don't really need or want anything to improve it. This system is in my dedicated audio room.
The ironic part is that I'll occasionally put together other systems in other rooms although I know damn well in advance that they won't surpass my main system.
Perhaps just to have something new to play with and to see what's out there and compare. My partner says that I should be one of those influencers or reviewers online, but that's just not my thing. I think I do it just out of curiosity, love for the hobby or just boredom. My nephews and nieces aren't complaining though, because most of that stuff I give away to them after a while, as components get demoted from room to room and eventually the garage and then given away.
You could probably guess where they like to look when they come over :)