Are 500 hours too many for a used hi-end cartridge?


I have been looking for good used mc cartridges on Audiogon in the $800-1000 price range. Most cartridges at this price advertise 20 to 200 hours. A few questions:
1. Are the advertised hours believable, since turntables do not have elapsed time meters?
2. Is cartridge age more important than playing time?
3. Is 500 hrs too high for the purchase of a used mc cartridge?


cakids
Miller Carbon, You wrote, "Look at it this way. The vast majority of the sound of a cartridge comes from everything other than the stylus. The vast majority of wear on a cartridge is only the stylus. Therefore the one thing most likely to be worn out is also the one thing least likely to matter."  That was at 10:32 PM on Apr 10.  Since your next post after that one was a masterpiece of satire, I assume you must have been joking also when you wrote the above.  It would be easier if you would flag your humorous remarks.
vegasears
No, buying a used cartridge is like buying a used tooth brush.
I couldn't agree more. It amazes me that some here actually recommend used cartridges that have been out of production for decades.
You can change coils, suspension and stylus in MC cartridge. Not in all of them but it’s possible.

In MM cartridge you can change stylus easily.

So if you look to buy used toothbrush try Pickering they do have something similar.
@vegasears  
Ever hear of bleach? Disinfectant? Those tools in the dentists office are used in many mouths before they get used in your...of course, that is IF you go to the dentist
@cleeds 
I would never recommend anyone buy used cartridges. I'm glad for those who won't &  leave them for me.  Great Supply & low demand makes it better for me.