Aged components / service!?

I had issues with an older PMC active speaker, my ex Wadia 381 (repaired), my Krell KPS 25sc (repair and expensive as hell).
So i have had my share of experiences. That Wadia cost about 1200 usd to repair and Krell device about 3000 usd.

I have had many pieces of used high end gear over the last 50 years. The only one needing repair was my tubed Sonic Frontier CD Player that would have the CD transport go out every few years (I bought that new). That is it. All others, some 30 years old by the time I traded them in had a problem.

+1 for Dynaco and Hafler. David was quite the amp engineer. My 51 year old Hafler DH-220 sounds sounds so right after Musical Concepts brought it up to modern specs on 12/31/1989, Then three months ago it was literally rebuilt, meaning very little original remained. I was nervous when it was being rebuilt for the second time.... wondering if it will still sound original (as close to tubes as you can get with MOSFETS.) Break in day.... OMG! It's ruined! A month later it is like it used to be but deeper bass, more guts, sweeter sounding mids and hi's.....