For all practical purposes, the thumbhole stock kills the deal. When I sold my BT100 w/thumbhole stock, I was fortunate as I had a Monte Carlo stock to go with it as well. However, mine was the matte finish but I was able to get $1800 for the package. The hard part is finding a Monte Carlo stock w/regular stock bolt to go with it. They are out there but very pricey.
Browning really screwed the pooch with their thumbhole stock. They always had beautiful wood and finished nicely. The problem was, you had to be 6'9" with basketball player hands to shoot it. I could slide the trigger all the way to the rear and manage to shoot it. However, with the long reach for your hand, you had to be careful not to drop it.
I've often wondered why the thumbhole stocks were harder to sell. Ive never seen one in my area, so I could not mount one to see why they were frowned upon. On paper they look like a very good idea. break em all. Jeff