I am actually regretting restarting this thread. I just wanted to state that I want my customers to be able to sell a knife for more than they paid for it. It may not make great business sense but I want them to be able to make a profit on their investment. For what it is worth, in the particular instance I was referring to, I am pretty sure the original owner had the knife for at least 6 months.
Also, I am actually glad Stacy moved it. I started it where I thought I should, and he moved it where he thought was appropriate. I easily bow to his greater wisdom about the rules of the website and where things should go. I should have known that this topic would get edgy pretty quickly but I didn't. I was not meaning to start something that has been beaten to death. I had just not seen anyone mention anything similar to my position on the original post.