When and opportunity comes by, sometimes it’s just better to take a chance. One of the ways I justify the price of a bulk buy is the value of the best item available. Example, I had a chance to buy 10 golden age comic books for a very reasonable price. I took the highest valued item, a 1944 Master comics, Captain Marvel Jr, and placed a retail and a wholesale value on the one book. My offer for the entire lot was a mid-point between the two numbers. In this case, I got 9 books for the value of shipping and insuring. Just a tip!