No I am not, I'm in Canada. No problem. If someone is in Canada and would like to have reduced shipping that is also fine, but most people who buy from me are from the States. I think I have only ever shipped to Canada maybe once or twice.
You should be able to ship for less. These things don't weigh a whole lot, and could probably ship Priority for around $10.
I know for a fact that is not true, at least not if I am shipping to USA. I just shipped two MVS carts that way priority and it cost me 22.50, plus a colecovision which cost me 39 dollars.