67-72 Starter/Alt/AC Comp Cores

[special-K]

Are starter, alternator, or a/c compressor cores worth anything? I have a bunch of all these from over the years and wonder if there is a market for any of this. I know the core. I always liked to have my original equipment rebuilt. The alternators and starters I have accumulated are from when I needed the vehicle fixed right away. I would keep the oem part rather than collect the core charge, thinking one day I would have it rebuilt. Some compressors are bad and others were working when I pulled them. If nothing else, would there be a market for these parts rebuilt over a rebuilt from the big box stores? I have a reputable benchwork shop that has been in business a very long time that I use. I want to reduce and am wondering what the best thing to do with this stuff would be.