It really depends on the seller.
I have purchased used cartridges with success as well as new cartridges.
I am considering sale of a cartridge (purchased new) which has been used for 19 record sides (I keep track) so about 6-7 hours. The sale of high quality used cartridges well cared for and used lightly does happen.
I have purchased used cartridges with success as well as new cartridges.
I am considering sale of a cartridge (purchased new) which has been used for 19 record sides (I keep track) so about 6-7 hours. The sale of high quality used cartridges well cared for and used lightly does happen.