Well I believe that Satoshi hadn't thought that many would see bitcoin as an investment and not as a coin, and that mining will not be beneficial except if price goes up. But if price goes up then we should all go and by one BTC right now, but if we all go and buy one then price will go down and miners will not afford it. And it seems like a circle to me.
Everything in our life, works in cyclic manner; one triggers other and the last one triggers again the first one. Dependency. One simple example, how gold gets its value or trees are causing more rain and rain supports growth of trees.