Wouldn't you be supporting the bitcoin economy by exchanging your bitcoins for dollars, and buying two Pies instead of one?
Nope, I want to do a real P2P transaction
I was able to PGP encrypt the message and pay with Bitcoin. This way, no one knew I was even interested or in the process of purchasing one.
If I used my credit card, or at the store, many paper trails would exist.
True, but I can't imagine a scenario where those benefits of Bitcoin necessitate paying double the price for something like a Pi.
It's not double, its more like a small markup. Also, the Pi's on the website take a few weeks to ship. This way, Ill get mine in a few days.