"So put a price on it and put it up for sale. If people buy that’s a yes. Change the price. If people buy, that’s a yes. If people stop buying, that’s a n

"So put a price on it and put it up for sale. If people buy that’s a yes. Change the price. If people buy, that’s a yes. If people stop buying, that’s a no. Crude? Maybe. But it’s real." (from http://37signals.com/svn/posts/3394-how-to-price-something http://37signals.com/svn/posts/3394-how-to-price-something) Perhaps this should be amended to include: "If not enough people buy, you shutter the service. Crude? Maybe. But it's real."