That's actually a reasonable response. From my first read the numbers seemed a bit inflated, so I dug into their blog post out of curiosity (I develop on GAE),

That's actually a reasonable response. From my first read the numbers seemed a bit inflated, so I dug into their blog post out of curiosity (I develop on GAE), so the comment was not ill intended. Now that you have pointed out they do seem a good estimate! Thanks for the great articles David, keep them coming! :)