A lot of Lulu customers don't market their books, they just use the service to print private copies of family memoirs, documentation or other one-off products.

A lot of Lulu customers don't market their books, they just use the service to print private copies of family memoirs, documentation or other one-off products. No break-out hits that I'm aware of. Some indy RPG publishers sell reasonable numbers. Wil Wheaton's book ran pretty well...