I came across the following on Amazon a while back:
If you're like me, you instantly noticed that there's something weird with the above. It's got nothing to do with the book itself (it's a great read), but rather with the seemingly backwards pricing. Traditional economics purport that physical goods should be more expensive than their digital counterparts (since you're dealing with atoms vs. bits). Yet, in this situation we have a bit of an economic anomaly. The physical thing [that's been manufactured, handled and cared for] is actually more expensive than the collated mass of bits and bytes that make up the ebook. Now Amazon's algorithm's have been known known to alter pricing based on supply and demand (leading to anomalies such as these) but reality is, such results certainly won't help people ween off their habit of reading from dead trees.