I’m not the first person to ask this sort of question about e-books, but I’m going to ask it anyway.
To whomever it may concern: Why can’t I buy the Kindle edition of Poul Anderson’s The Broken Sword? It is available at Amazon.co.uk but not Amazon.com.
Yes, I understand there are contracts and things. That’s completely missing the point. The point is that this e-book exists. I want to pay you money for it. I’m even willing to put up with your stupid copy protection. Yet, I can’t buy it. How does that make any sense? If you can’t fix it, why are you even clinging to your precious “rights”? Give up! You have failed.
On a brighter note, I paid Baen $35 for the Fafhrd and Grey Mouser collection, and it doesn’t come with copy protection.
Also of note is that some of Jack Vance’s works are available without copy protection. There are regional availability issues there too. Though the ones I looked at that aren’t available in the US are available through Amazon.com in the US...and some without copy protection.
And if you didn’t know: The Harry Potter books are available as e-books sans copy protection from Pottermore.