I thought the price of $12 was ridiculous for a 30 page comic. Even if every aspect of the publication is premium the price makes the effort of publishing nothing more than an experiment. When I went to buy it and check out I discovered that in addition to the high price I had to pay $8 for shipping! In my estimation absolutely no one will pay that kind of shipping for so few pages.
So what good is Blurb? It is of no use as an actual publisher unless they can get their prices down. The only other use is as a portfolio publisher. In other words, if you were going to a comic convention it might be handy to have an actual hardcopy of your comic to show potential publishers. I am planning on making a book of my fine art paintings to send to my galleries as a promotional piece. I can envision a few hardcore collectors wanting to purchase the book, but again, the price will be so high it will prohibit any large scale sales.
Until Blurb can get their prices down they will only exist as a vanity publishing house. But hey, I fell for it. When I went to check out I was informed I could buy an additional copy for $5. The price seemed relatively cheap so I jumped on it. It was only later that I remembered I had never paid $5 for a comic in my life. I had been successfully upsold on my own comic.
Although I am glad to see this business in the early stages of its evolution on-demand publishing has a long way to go before I will be impressed with either their sales techniques or their business model.