My view is that I'm the only one who has to like the way my system sounds. Having started at a very modest level, I chased upgrades to just about everything Serge mentioned over the years and have settled upon my current setup. I believe it's just about as good as my ears can perceive.
I bought my speakers and amp because I truly believed they were generational products that would last my lifetime (or whatever time in life I have left). They form the core of the system. I have no desire to change it, especially if it's just to get the newest latest bit of kit.
I also subscribe to the law of diminishing returns. I'm not wealthy enough to journey down that road, so I don't ever think about it.
Aside: I would like an offshore center console about 10 feet longer than the one I currently own.
