If Bitcoin is going to take off, you've got to use it. I just talked to a customer service guy at Newegg. He said 'hardly anyone' pays with bitcoin. He said he's only dealt with two orders done in Bitcoin.
If you've got bitcoin, go spend some buying cool shit at Newegg or Overstock. The whole thing will fall apart if Merchants start seeing it as a waste of time.
Don't wait, buy some shit today! What are you - an idiot?
The only reason BTC has had so much success it because of "dark markets" Most people that are not into the tech of bitcoin purchase the currency to buy illegal drugs online. If you didn't buy your BTC before early 2013 you SIR are not a investor but a complete moron.
I would say that the dark markets is what helped bitcoin grow and become more widely known/used, however bitcoin does have many uses outside of dark markets and is still more cost efficient then paying via credit card, especially from a cost standpoint