I wonder if Windy knows he is selling those planes and asking those kind of prices. IIRC Windy was very big on "Pass it around" and let everyone get a turn. I have flown the Miss Ashley, that very one that is listed, and it was a great flying plane.
As well as "pass it around" Windy also sold his planes to customers if he no longer wanted them and someone made him an offer. Windy custom built planes for customers much in the same way Tom Morris and other cottage industry suppliers do today. A fully built , finished ready to fly plane by Tom Morris is in the $1,199.95 to $1,799.95 range according to his catalog (and it is worth every penny you pay in my opinion) Although I don’t have a catalog of all of Windy’s finished plane sales I know most were over the $1000 mark and often a lot more, they were usually private sales. The pricing for the listings are not out of order on that basis IMHO.
Re: "I wonder if Windy knows he is selling those planes and asking those kind of prices".
I believe there is a negative inference in your post which is somewhat disappointing Doug, if you feel Windy should know about these re-sales and doesn't already, you can always email him or the seller (me) to get more background. If you think the price is too high for the hundreds of hours of work in their builds or the pedigree of the model, you don’t have to buy.