This was discussed earlier. Turns out, it can and does wildly vary based on usage scenarios. http://news.ycombinator.com/item?id=282528 http://news.ycombinator.

This was discussed earlier. Turns out, it can and does wildly vary based on usage scenarios. http://news.ycombinator.com/item?id=282528 http://news.ycombinator.com/item?id=282528