How old is too old?

Any Model that is looked at can very easily be looked into for the overhauls that are able to be done to keep the Model in fine fettle.

If one is very lucky a Model selected can have a range of info extending to Videotorials showing exactly what is required to add Parts that are modern and are able to be exchanged with Olden Era Parts selected by the Manufacturer.

Alternatively the Models shortlisted can be selected only because of the Info that is available to keep them in good order.

https://audiokarma.org/forums/index.php?threads/troubleshooting-cd-players.440522/

https://www.youtube.com/watch?v=DZ6OJq8hEWg

I knew a repairman able to set vintage gear right at peanuts price...

He fixed my first Sansui...

But he is old and retired...

 My vintage Sansui alpha will go till after my death probably without  need to repair but i will no more buy old vintage...

It is useless now with  the offer in the audio market...

When do you think you’re going to check out? 20 years to go and buying 20 year old equipment equates to 40 year old equipment on the backend. Buying anything mechanical is always a risk.

@nonoise 

From what you said, I think I have hearing similar to yours. I'm 72, almost 73. I drink about 10 cups of coffee a day (always black). That's about a third of what I used to drink. Are you telling me that my coffee habit is causing the white noise that I hear? FM. I sure would hate to give up coffee but if the noise would go away, it might be worth it. 

"before I check out"?

Either you posted this question from your hotel room or the question relates to your own personal "end game".

I know how you feel. Last week, I was discussing whether to buy a new set of golf clubs and I referred to them as my "last set of clubs".

Isn't getting old great. Lol.