Wow! Based on what they're selling these books for, I could probably take an nice vacation based on the ones currently residing in my library. Especially considering that I paid mere pennies for them when I bought them.
One really has to wonder how many people they dupe into buying from them, as when I did a quick perusal of a few of their offerings on Amazon, the price difference was astonishing! For instance, "The Art of Chinese Cooking" (which I own) can be bought for less than $10 on Amazon. These folks are claiming it's "on sale" for $35 down from $59.