I looked into SFH once. The amount you would have to charge per page in order to make it worthwhile is off-putting. Consider the time it takes to make a page, have it printed, and the shipping cost would be well over $10 per page. I don't know too many people that would see that as a viable option. Especially now that most professional photographers now include a type of scrap option the feasibility of making a go of it is low.
One has to be very prolific to see a profit by the time all costs and design time are considered. I admire the designers here that can make a go of their talents. It is a competitive market and not for the faint of heart.