[bhouston]

Goldman Sachs is getting in because it see a future in making profit from others trading in cryptocurrency. Goldman Sachs believes that the profit it will make from this exchange's trading fees will be greater than the cost of purchasing it. It is that simple.

[charlesdm]

Selling shovels pays off. But now they might have an incentive to cause more volatility, by moving the price up and down and thus scaring people.