I always here this and all I can think of is what do people do now if they're paying with cash? What's the difference between bitcoin and cash?
Massive difference. I have to actually hand it over in person.
If I walked into a store and purchased a book with cash, and the cashier didn't give me the book I would cause a huge uproar.
If I purchased a book on an online store and paid with Bitcoins and it didn't arrive in post, who do I turn to now?
Problem with reputation is a new store begins at 0, so the first customer has to take a leap of faith.