I just saw their website. There was another one that was a little cheaper too. But you are right, the shipping is $$.
While looking I came across an interesting alternative- Race fuel. It is cheap, and the contents are 95% Ethanol and 5% methanol. I know,methanol, but at only 5%, that seems reasonable when dentured is 50% methanol and other bad stuff is in there. And many people use the HEET at 99% methanol.
It says in the description that you can use it for indoor fireplaces(?) and stoves.
Best thing is that it's $8 a gallon! Here is the link;