Someone who runs a mail order selling chips does not only have to spend the time and energy to acquire his stock I would imagine thats the easy part. Now you have time spent on posting these items on, say E-bay. There are E-bay fees, Shipping supplies , Paperwork, payment tracking ,runs to the post office etc etc etc Its called business and there is a cost of doing business.
It is up to you the individual to decide how much is too much. Someone will pay $400 for a new Hard Rock chip and complain about the shipping and handling?
I have never posted an item for sale as of yet but I do understand business and I understand costs. If they seem to high DONT PAY THEM and they will either come down or the person will go out of business quick. To me a dozen is twelve and it doesn't matter how you put it together its still twelve so look at the bottom line, as they say let the buyer beware. Remember when you think that a buck or two is too much consider the alternative how much is the AIRFARE.