its not because they are not quality products- it's because they order larger shipments and pass the savings on to their customers....as with lots of things- the more you buy the better price you get often in a retail setting- at one of our lqs i know if the owner buys one bolt each of a line it is one price- if she were to order 5 bolts each it would be less- and 10 bolts even less...that is how they do it.