Can't call OpenBazaar a failure when they haven't enabled TOR yet. For better or worse, commerce for normal (non-contraband) items is going to be one of Bitcoin's last major uses as it goes mainstream, not one of its first.

See: https://www.reddit.com/r/Bitcoin/comments/37m00z/problem_when_i_spend_bitcoin_in_the_real_world_i/crnum1a