Anyone have success selling used printer / copier fuser assembly or imaging drums?

Toner cartridges are pretty easy to sell if it's OEM and not obsolete. I sell 99% of the new cartridges I receive through eBay. You will not get retail price selling the cartridges, but I have sold hundreds of new (sealed) toner and ink cartridges for usually 50%-75% of retail. I have tried selling on Craigslist, but with a lot less success. People buying through Craigslist usually expect garage sale prices. I have sold a lot of OEM out of packages that were unused and many ink cartridges well past expiration. Everything I get is free, so I don't stress any kind of markup to make profit. On rare occasion a cartridge will not sell, usually due to being too old (machine in near extinction) or it being a compatible. I have sold thousands of (OEM) empty cartridges, which add up quickly when receiving $0.50-$22.00 each. I am starting to believe that the cartridge business may be more profitable than scrapping, but of course I am just a beginner with the scrapping. I have a very unique situation with cartridge collection, so I yield a lot with very little effort, plus 100% of what I get is free. I do help schools out however with cartridge recycling fundraising projects.