Bitcoin behaves more like a "stock" than it does like a "currency" and I think that is it's biggest barrier to being accepted as a means of payment.

If I'm Amazon.com, why would I accept Bitcoin as payment when it could easily lose 20% of it's value with nothing more than Jamie Effing Dimond holding a press conference? It's way to volatile for any retail giant to have to deal with. Furthermore, why doesn't Amazon accept shares of APPL, GOOG, or MSFT as payment? When you think about it, it's really not that different.

Not FUD, just common sense questions.