In general, I have to agree. It has been my observation that in ten years any component category advances make a very sizable and worthwhile improvement to upgrade. This does not mean the old stuff is not satisfying.
The easiest for me to relate to is amps. I have owned and upgraded Pass amps since about 1980…every ten years. Each time I questioned if they could be worth the upgrade and each time I was so impressed I had to. I have also experienced this in speakers (owning 20 year old 10 year old and now contemporary), preamps. Of course digital really big time changes.