Joe public dont always know what they have. i remember years ago someone buying a car mascot off someone who swore blind it was a rolls royce, turned out to be a lalique!
it all comes down to being in the right place at the right time .......
I agree with you bodge on consistency , got some ww1 us badges on uniforms they are worse ....
there are bargains to be had , got most of our us ww2 stuff years ago when not much call from it (container loads of friend in florida who was doing garage sales )