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Doesn't hurt to try and post your results and if it worked well for you.

I don't have any experience with Blurb but there's http://www.createspace.com I've been working with them since January publishing two childrens books.  I've not been able to order copies of my own stuff yet so I can't vouch for the quality.  There's another site that you can do hardbound on (can't find it can't remember the name shoot!) there's also http://www.lulu.com I don't have any experience with them either.

So I supposed I'm not much help here.

I made several Blurb books, but there were done mainly as personal projects. In view of the present book prices being brought down constantly bu Amazon and other online sellers, publishing books by Blurb or other POD printers is just not feasible.

In contrast, I published 4 small photography books by conventional means and sold over 10,000 copies. Printing books this way requires print runs of several thousands copies, but the cost per book is very low. It is much easier and cheaper to print books now than just ten years ago. However, selling the paper books now is much harder than it used to be.

You may want to look at making your book first in electronic format and test the market. The early sales will give you an indication whether you should proceed with the printing or not.