I think the gist of the Op’s Question was wondering if a super high priced 10 year old amp that is now more affordable a better option than a current new amp at the 10 year old’s current used price. I would say it depends on the amp and condition. Would internals need to be replaced ( caps, etc)? Plus, how old was the design when the amp was sold 10 years ago.
many would argue that current MC275’s are a pale comparison to earlier generations.
many would argue that current MC275’s are a pale comparison to earlier generations.