[saturdaysaint]

I believe that the right book at the right time can change your perspective, maybe your life. £15 is a pretty small price to dive into a well-written book on a subject, practically the moment your interest is sparked in the subject. Other conveniences - the fact that you don't have to trudge hundreds of pounds of books every time you move, the ability to read on any device - arguably make them more valuable than their physical counterparts to me, at least.

[mkaziz]

I would pay 15 pounds for a life-changing book, but not for my next pulp fantasy. That's just way too much, especially when the paper book costs around the same or less.