I have also found the joy of using low priced brushes. I have recently added a Semogue 1460 and a Vulfix 28 both were under $20 apiece. They are little over two months old are breaking in really nicely. I think if people were to try boars, let them mature into the great brushes they can be they will be surprised at heir softness.
There are many great choices of brushes for under $25. This was great article thanks for sharing.