If you look at the pictures you will see it is made of wool samples from textile plants in Europe. There are tags on some of the swatches. The wool will make it very heavy! I had some men's suit samples and my DGS made a quilt which was very warm but also very very heavy.
A collector who is interested in vintage textiles would love this quilt. I see them in antique stores from time to time and the price is not unreasonable. More than I would pay but I don't collect wool quilt tops.
I have also seen on Simply Quilts and other shows where they visit European museums and this construction using textile swatches is something that you can see in some of the quilts in those museums.
The quilt has value because of it's age and where the textile swatches would have come from. These are usually samples from a sample book that the peddlar went from home to home to sell fabrics.
As an antique dealer's daughter and a collector I can see the allure of this quilt top. It has a history! In antique stores these prices are very common for this type of quilt top.
It just takes the right buyer to sell something like this. It takes a collector who knows the history of these kinds of quilts.