Isn't the point of buying brands like that that you shouldn't need to fix after only 10-20 years? I have a denon receiver from the late 90's that I upgraded from and has been my garage/shop amp for the last 15 or so years. It is covered in dust and dirt and still cranks like the day I got it.
I also bought a 10+ year old Denon amplifier and overall it's great, but over time it developed some minor issues with components like Alps potentiometers and switches. Unfortunately, Alps doesn't produce some of those parts anymore (like the ones discussed here: https://www.diyaudio.com/community/threads/source-for-alps-a...), so it's really not easy to source parts for repairs. It would be nice if you could simply ask the manufacturer to sell these components to you directly.
Well, yeah. I know I have a lot of 20+ year old audio stuff still going strong.
Some things like capacitors have a lifespan just due to their nature.
A McIntosh owner might also enjoy knowing that accidental "user error" type stuff can be repaired. It's pretty difficult to actually blow out an amplifier unless you're doing some real torture test type stuff; the fuses should blow before you can do any real damage. But still, after having plunked down megabucks on an amp, it's probably nice to know that your $10K or $20K investment can be repaired if you really manage to screw something up.
Not that I personally would ever consider owning McIntosh gear. I'm sure it's nice, but at the prices they're asking... I'm good.
