You only have to look at some of the Cars produced by Detroit in the past (Pinto, Gremlin,Vega etc) to realize that no matter how ugly or unreliable the cars are, if you market them, eventually someone will buy them. It's the same with anything, even a religion. A lot of it is a matter of numbers and timing and stick-to-it-ive-ness not necessarily that the product is good or even needed.
You could go from door to door selling white washed graves year after year and someone would eventually buy one and there'd be some who'd even look into setting up their own franchise.