[drivingmenuts]

Because Stripe has already established a reputation with people who take payments but aren't familiar with the ins and outs of Bitcoin?

A lot of people aren't going to have the time to do research to find out about the ins and outs of taking online payments with Bitcoins, and at any rate, there's enough negative news about bitcoin that some of their research is going to turn up the various shenanigans of bitcoin banks, or the shenanigans done to them, etc.

In short, Stripe provides some automatic legitimacy.

If I had a need for Bitcoin, I'd probably want to go with someone established in the mainstream of payments, as well. Which means Stripe or Braintree or one of those guys. A large bank would be even better, but that may take a while.