The problem with the Blurb concept is that you are not only writing/creating the book, you are also doing everything related to publishing it as well. That means editing, layout, page design, headers, footers, etc. The photos need to be adjusted to 300 d.p.i. with the right pixel length and width to fit in the software box for the page. Good colour, contrast, punch, and detail need to be consistant throughout the photos in the book. Experience in print media is very helpful and one needs to remember that the slightest mistake will show up rather glaringly in the book.
So what I am suggesting is that you would probably need to spend money on a few photo books until you learned what mistakes to avoid and was happy with the result.
skieur