Oh yes ..Peggy... it is amazing... if a bike has a bit of a "cult" following, people will pay ridiculous (high) prices... while at the same time ignoring items that are even better quality, function, and useability... for one fifth the money!
There are a few examples... Yamaha YSR50's ... most of the Honda Z50's, CT70's,... and almost all Harley Davidsons.
Their prices are wildy out of line with common sense.
But... People will be people... and it is their money.
Anything is only worth what people will pay for it.
An old honda XL175 is a great old bike... (and will get better MPG than 90% of the mopeds you will see..(80mpg)).. while still being able to go near 70mph and be freeway legal...and fun on trails....... and pollute less.