Capacity Planning on a Cocktail Napkin

It is a nice read. The funny thing is, when it comes to host a web application people still think the hardware is just an utility and price has necessarily to be the lowest possible.

They do not think about the volumes the application will have to serve and which compromise on computing power and redundancy they will have to make to ensure their application will run.

Most of the time it all boils down just to the price. Weird.