I guess that's another reason to get people using btc for g&s on the internet, especially for net-based services to which btc are particularly suited.
yes, but what would make bitcoin fly is a highly valuable service that ONLY accepts bitcoins as payment.
ideally that service would be something generated by and for the community.
a simple marketplace doesn't count because there is nothing to stop two parties, having established a co-incidence of wants, to just use dollars to settle, or another cryptocurrency for that matter.