Who cares about +15 K carts with 4th level (diamond) cantilevers
and ''gold plated'' styli (grin).
Well obviously you do, because you seem obsessed with trying to delude yourself that retipping is the same as rebuilding.
You appear to be completely unaware, or unable to accept that if a cartridge is a few years old, then refurbishing should include checking the dampers, checking for any mechanical or electrical issues and addressing them at the same time.
You apparently have learnt nothing from JCarrs post above where he clearly explains that many of the cantilevers/styli can be unique or custom. configured for individual manufacturers.
My Dynavector Karat Nova 13D is a prime example. The cantilever and styli cannot be obtained from anyone other than Dyanvector. In fact I have seen on this forum a well known member trying to flog a Dynavector Karat Nova 13D off with a home-brew aftermarket cantilever. It was no longer a Dynavector Karat Nova 13D as designed ( and looked like a small dog with it's lipstick hanging out ).
It is none of your business what I pay for a manufacturers rebuild, but my decision on whether to rebuild is no different to anyone else
What is the cost of rebuild ?
Can I get a better cartridge for the same budget ?
It is very simple. Its called cost benefit analysis.
And contrary to your misplaced envy, no one needs to spend $1000's of dollars on a cartridge to get a great sound. Currently, despite having the Dynavecto Karat Nova 13D and Ikeda Kiwame ( both purchased new and as new ) I am currently enjoying my old Denon 103D ( bog standard, purchased new some years ago and not used much ). I'm still getting a better sound than most simply because of my system which has been carefully assembled over 30 years.
Don't take my word for it - here's what a visitor said who bought an old DD off me ( who has a Stereophile Class A TT and several megabuck cartridges -
https://darklantern.proboards.com/thread/721/direct-drive-thread
The guy I bought it from had one of the best systems I've ever heard, ever!
He had vintage Tannoys, a couple of turntables he demonstrated which I'd never heard of before and can't recall what make. But I do remember how realistic sounding his system was. It was absolutely fantastic and a sound I would love to be able to reproduce.
I'm pretty sure both turntables were belt drives.
I'll NEVER forget how that system sounded. So worth every penny.
Must try to get an invite to have another listen. He was an Audioenz member but not sure if he's signed up here.
Good audio has nothing to do with price, its all about putting together a system properly integrated that is coherent, musical and transparent to source.