Why Is Twitter Free?

I was once trying to sell my house, but decided to take it off the market. My neighbor, who was a real estate agent, asked me why. I told him there were no buyers.He laughed and called me an idiot.Then he asked about the price. I said $400,000. He said, if you were asking 5 bucks do you think you could sell it? I said, of course. Then the problem, he said, is not that there are no buyers, the