WOULD IT BE DUMB TO BUY A MARK LEVINSON NO 23.5

Caps have been tested at 70 years old and still held up. It’s total BS to replace them unless they fail. I bet the repair shops love your money Georgie

You've been sold a furphy.
They dry out and loose capacity.
And I don’t do repair shops.

I just bought one with a mint exterior and an original interior. Still sounds good, but I'm going to pony up the scrilla to have it refurbished so the insides match the outsides. Legendary kick ass amp deserves a chance to drive a current pair of high current demanding legendary kick ass speakers. Cost is unimportant, we're all addicts here, aren't we?
 Good thing we still have two official old school Madrigal era service shops around. 

I just finished reading this thread...really sorry to hear you had to sell your new found treasure, jeffvegas.
Audiophiles are a fickle lot, so you'll get a crack at owning another one, or even a chance to buy yours back. Audiogon is like a pawnshop for audiophiles...
Hopefully 2021 will be better for everyone.

I am back at work and recovering financially. I am looking at a Mark Levinson No 335 to replace the 23.5. Can I expect the same good sound as the 23.5 with the 335? Will it sound better?

The 335 is a great amp, i feel the 3 series is better than the 4 series. Find a good power cord for it and you will be happy