I suspect that there's also some C&V stuff cycling back into the system from maybe newbie retro cyclists or older returning cyclists who tried them out but then decided to move on to other different and/or more modern things.... Simplex retrofriction DT shifters for instance. I'm sure lots of them were sold after all the publicity from C&Vers like us, touting how great they are.......well after some time, I think many people decided to move on and try out brifters on their bikes, so it has been raining retros at eBay for a while now, and prices had gone down significantly for them (used or sometimes, NOS)...and they still keep coming up in good numbers presently.....