Buy a $40,000 10 year old amp for $4,000 or new amp for same money?


Hi. There are bargains to be had on really high-end components that are more than a few years old. DACs change too much and we need the newer technology. How about amps and pre-amps? I know it can depend on the specific amp but in general is a 10 year old amp that was $40,000 in 2009 and now sell for $4,000 a better value than a new amp that sells for $4,000 in 2019?  How much has amplification evolved in the past decade or so? (I posted a similar questions about speakers in that forum). Thanks for all the input and wisdom. 
mcmanus
Post removed 
I think there was a pair of wamms for sale for close to 75% off their original pricebut the wamms are probably far inferior to the alexandria xlf'sive also seen some older wilsons sell for about 50% off, but i think the new ones like daw, alexia 2 will retain value a bit better. at least until the daw 2 or alexia 3 comes out.
I bought a pair of McIntosh MC501 mono block amps 10 years ago for 6K, can sell them for more than that today.  

Care to compare Class D amps from 10 years ago and their resale price today?

Quality will always trump the newest thing.
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.