Utility. It is the safest, simplest way to buy anything from anyone in the world.
I think this is a bit optimistic. Exchanging and managing bitcoins still requires the use of a computer and an internet connection, which makes it vulnerable compared to physical money from a established currency. Since it is still a very new currency there are also risks of the whole system crashing down due to unforeseen reasons.
However it's probably the easiest way to make anonymous payments.
I hear what your saying and you may be right. But if one factors in the complexity of setting up an bank account and getting it linked to a credit card, then bitcoin may compare more favorably. Once your client is up and running, pulling he trigger on a purchase is easy.
When it comes to international sales I think bitcoin is even more powerful. I bought a food recipe from a student in China once. Can you imagine how difficult that would have been without bitcoin?
I can't argue with that. To be honest, I'm going to refrain from passing too much judgment on bitcoin, whether positive or negative, until more time has elapsed. After all, it's still an experiment in progress.