If upgrades were no longer possible would you be

Love my set up...hate the room...

Always something to do, but with DIY mods the recipe for satisfaction is different: 1/5 cost + 10x(time + effort)= 2-3x stock performance.

I would be satisfied with my main system, and I would be satisfied with my old Marantz, Denon, JBL system I have in the basement. Both get my toes tapping.

I think I would lose interest after a while . Its the great sound that keeps me coming back . Ya Ya , I know , its the music that matters most .

FIRST:
Even if nothing new was available I still continue with upgrades as I discover the benefits of things which already exist which I did not know about.

SECOND:
Most "upgrades" are nothing more than just churning of existing products. This happens a lot in consumer vs. OEM where people are inherently dissatisfied and looking for the latest and greatest vs. basic functionality.

How much has REALLY changed out there?
Take Quad ESL's which were invented over 50 years ago. They are still one of the best speakers today. On the other hand is Musical Fidelity which has amazing breakthroughs every year or two. Things that make you go HHhhmmmm. Or the latest rage in speakers to add a 5dB bass bump at 100 hz. Just the flavor of the day.

Personally, every time I read how a speaker has huge improvements because of an x-over re-design, makes me happy to have a full range driver with no x-over to begin with. The other option is to go with an active x-over. Either eliminates the whole x-over thing altogether. Nothing new, just a lateral shift to alternative existing technology.
So all you satisfied people out there, you don't know what you are missing, heh, heh!!!