Photography Prop-selling & buying

Photography-props, whether you are buying or selling -- If someone advertises for a similar or 'like' product in which you are looking for a price of say "$12" and then someone else comes swooping in and instantly says "$30", kindly tell the person that it is rude of them to undersell someone else.  I see this all too often really and more than 50% of the time, the person underselling the other, has a product less value (even though they are pricing their item relatively too high). It is all a product of "How much money can I make by ripping off which consumer?".    It's pathetic really.


What is even worse is when I see other photographers doing the same thing to me.  You should worry about your own business, because what I am lacking now, I will not be lacking in the future.


Food for thought, folks'.