Mark Cuban made some interesting remarks http://blogmaverick.com/2015/03/04/why-this-tech-bubble-is-w...
"If stock in a company is worth what somebody will pay for it, what is the stock of a company worth when there is no place to sell it ?"
"If stock in a company is worth what somebody will pay for it, what is the stock of a company worth when there is no place to sell it ?"