[macminer]

I also voted "other" because this depends on many factors.

1. Availability. If the ebook is instantly available whereas I would have to wait long for the p-book (assuming I really want or need to read it now), the price difference is not the main factor.

2. Use. I simply do not want to collect p-books any more. I might need some paper reference books, paper albums, but not really paper fiction. So here also price is not the main factor.

3. If there's a book I might consider as useful in the paper form and the ebook is more expensive, I'll obviously buy a p-book.

And there may be several other factors like the (poor) quality of the ebook or the likelihood that I will want to lend the book to my friends etc., which may make me favour the p-book over the ebook.