Hello People, I have a pretty new Czech 4 NT I have been playing for a while, but just recently played a USA B.O 4 that I like a lot better. The Czech looks, and feels better built, in my opinion, but the USA seemed to sound and play better. Obviously, If i could straight up buy it, I would, but I was wondering 1. What is a good price to pay for a A) New USA 4 B.O. or a B) new-used one off of ebay or TB? 2. What is a reasonable price range to sell a pretty new, 9/10 Czech NT for, just a price range I should expect. 3. Also, do you think there is a quality differnce, or any onther input I should know.