VistaPrint's actual business model involves selling your contact information. They give you free business cards in exchange for adding your information to lists they sell. The cost to the user is much greater than $5 in shipping.
Hi dlevine, thx for your comment. Many businesses also use these kinds of up-selling strategies. I agree that customers probably don't like this shady services but I think we can still learn something from this $1.9B company.
Google is also doing shady things like domain parking without telling general users that they are the ads providers. You are right, we don't have to agree all of their moves. But at the same time, we should learn from these successful companies too.