[darryl]

The only ones potentially affected (more than simple inconvenience) are those who must read it right now and so immediately either buy the full price (usually overpriced) ebook or the paper book (in the case of a new release usually an expensive hardback but which may be available at some discount). Not affected at all (apart from the said inconvenience) are those prepared to do without altogether, wait, or download a pirate copy. Guess which option many seeking instant gratification are going to choose?

I'm also going to raise another point which is sometimes mentioned but too often overlooked. EBooks are a must for some older people and many with vision problems. Even many who are able to read print books are able to read far more comfortably with ebooks. For at least some people this is a real accessibility issue.