That's makes no sense whatsoever! I mean how much does it weigh you think? I'm only asking because, being curious, I checked a Greek publishing house.
(
Here's the page where I started "purchasing" it). Now, to reach $100, according to
thispage (if it doesn't show up right, just click the link under the heading Shipment and charges), it should weigh about 24 pounds or something like that. In the details (
here, it says it weighs a bit more than 2 pounds.
I'm not saying you should order it from Greece or anything like that, but the price difference is huge and it can't be just that Greek page that has it for such a smaller price!
Edit: Forgot to write the price for those who don't want to click the links: It's 11,30 euros (can't find the sign).