That Topper reminds me a lot of the late Yamaha C3. I really wanted one of those, but 50cc just wasn't going to do it. I think it would have sold much better had it been a 125cc or 150cc. At least I would have bought one.
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