The biggest thing to watch out for with any auction where the shipping price is super high is that I don't think the seller has to refund the shipping price if things go awry (I'm not 100% sure about this, ask someone with more eBay experience).
Plus, eBay just changed its policy so that they will charge fees for the entire sale price (sale + shipping). Before, eBay used to charge 9% on the sale price only, meaning a lot of people (me included lol) would charge a higher shipping price than needed to that eBay would take away less from a sale. But now, since it's charged on the entire value, people have no reason to charge abnormally high shipping prices anymore.