It was Paypal President David Marcus that said "The big question is whether [Bitcoin] is going to go mainstream or stay limited to just a few zealots and criminals." I started my bitcoin business, stampbit.com, with the intention of finding out for myself. Its been two months since i have started and have seen very little interest for this bitcoin version of USPS click'n'ship. No its not instant like clicknship, nor can i reasonably compete with my supplier on price, but then again i am trying to provide something that may prove inaccessible to anyone without a paypal account or credit card, and do it in a way thats much more convenient that how USPS does.