Graupner radio sets... anyone familiar with them?
 

Hey Folks,
Was wondering if anyone is familiar with Graupner's radio sets, and their relative value these days. I bought an FM set -- the Model 4014 (8 channel receiver, FM trx with no modules installed) back in 1985, and have pulled it recently from storage. I see the units have been discontinued, but was wondering if there was any value to the set. It's in mint condition, and is fully functional.
Any feedback would be appreciated.