I also watch the show on a regular basis. They do not like to buy 3rd Reich material. However, they do buy all forms of swords and old firearms. The opening credits show a Japanese katana. The store is located in Las Vegas where I am quite sure the overhead is high. The shop is always open and must have a considerable overhead. Paying 50% of an estimated top price is not unreasonable as their money is tied up until the right person walks through the door to lay down cash. There is also no guarantee they will attain a 100% profit. WhAt they pay is based upon business. They are not collectors.