Resident of Columbus OH here, a city known in some circles as a moped Mecca. Columbus was home of Handy Bikes. We have a ton of mopeds and were known for it, so since around the year 2000 this has been a target of the moped culture for procuring garage find bikes at a low price. I remember Bandits traveling up for this very reason. Fast forward to 2010 and it took $700 fo me to buy an all stock magnum from original owner. You can't even find those these days without immense luck or connections, as hoarders and flippers have plagued the scene. Today you better not have a damn life and spend all your time on the internet if you expect that to work. If you ask me, it's the formation of these clubs that kinda monopolizes a local moped economy. Prices go up. Camaraderie and community help (without a catch) goes down.
Regarding what they're actually worth?? If we were good to one another and valued each other there wouldn't be so much fucking bitching. Anything of mine I've ever priced has been met with hate and push back because nobody values my work, nobody sees everything that goes into a well built bike. Thats why I have no interest in hoarding but find myself with 6 or 7 mopeds. I don't need them, I just enjoy building them, and this cheap ass community doesn't value shit. (I know I know, shots fired eh?)
I'd price mine like this. Superbuild show winner magnum $3500, blaster full build magnum XK $2750, puch swapped revival front end Batavus $2500 etc etc. And at those prices I still wouldn't jump to sell.
If you want to pay $600 for something that rides, expect it to go 25mph and be sketchy as fuck. You know, a moped. If you want to stunt like me or anyone else building anything of quality that doesn't break or leave you vulnerable, pay to play or give that sweat equity because the only other way is by fucking SOMEONE over. Don't be that person.