I have a 1977 Puch with 24,000 miles. I bought it new, and all the miles are mine. It has the ZA50 2 speed engine, and would climb anything. I have owned about 6 mopeds total, including Tomos, Peugeot, and Motobecane. I sold a Tomos A35 a couple of years ago, it had custom made decals on the tank that said "death wish" Pretty much what riding a moped is all about. They worked fairly well back in the '70s, but with todays traffic, much higher speed limits, and most drivers on cell phones, they are suicide machines. In town a moped will get you killed faster than a Hayabusa.
I won't spend more on a bike than I think it's worth, but if it's a good deal, I don't seem to have a problem buying bikes I don't need.
2002 Vulcan 750, 2013 Royal Enfield B5
2001 XT225, 2009 Genuine Stella
1980 Puch moped