BTC might be the real thing, but some people are getting frustrated that it is becoming so centralized in the hands of a few miners. If BTC can ever remove mining from the equation and have transactions in the micro-seconds than it will really take off. Until then it will go up in value but never replace Visa/Mastercard.
You do know that without the miners there would be no BTC right?
And of course it is never going to be as fast as Visa or Mastercard, but the difference being both of those are centralized, controlled by corporations, can be reversed and offer zero privacy and you cannot make money from them, I know which one I would prefer.