You want us the know the importance of bitcoin? Did you know that this forum was created by bitcoin founder, and that pizza trade conversation was on this forum.
Pizza for bitcoins?
https://bitcointalk.org/index.php?topic=137.msg1141#msg1141
Pizza for bitcoins?
https://bitcointalk.org/index.php?topic=137.msg1141#msg1141
I love to read these old historical topics, the ones that remain and see how lightly OP wrote:
So nobody wants to buy me pizza? Is the bitcoin amount I'm offering too low?
I just think it would be interesting if I could say that I paid for a pizza in bitcoins 
Haha for sure Laszlo can say he paid for a pizza with btc, and pretty sure he won't forget it
Happy Pizza Day my dear Bitcoiners friends