Math and the madness of the crowds - fees
So many times I hear people talking about "fees". Some examples:
"Why would you consign to X auction house at 20% when Y auction house is 10%?"
"Why would you pay eBay fees when BST has no fees?"
This is laziness where you are so focused on the tree that you didn't do the math on what matters most: money in (or out) of your pocket. It is not better to pay $100 with a 10% premium than $90 with a 20% premium. If you are the consignor, it is not better to hammer $100 with a 10% buyer's premium rather than $101 with a 20% buyer's premium [assume the same seller's premium].
I bring this up because of my recent eBay experience when I changed the way I handled shipping costs. I used to charge a flat $3 shipping fee domestically. If you bought one coin, it was $3 to ship. If you bought 100 coins, it was still $3 to ship. I had done this for going on a decade and people would occasionally complain that the shipping was expensive even though I was losing money on most packages at $3.
The idea had been to entice people to buy a second coin because the shipping was free.
Recently, I changed. I added $3 to the price of all of my inventory and listed everything as "free shipping". Now, it actually costs you more if you buy 2 or 3 coins because you are paying $3 for EACH coin to ship. Guess what: people now THANK ME for the free shipping, including a guy today who bought 5 coins and therefore paid $12 more than he would have a month ago.
It is, of course, retail psychology. A sale is always better than regular price, even if regular price were cheaper. Free shipping, with the shipping cost hidden, looks better than a $3 shipping fee added on.
Please do the math...