Performance is directly related to profit on consumer apps. See http://glinden.blogspot.co.uk/2006/11/marissa-mayer-at-web-20.html?m=1 http://glinden.blogspot.c

Performance is directly related to profit on consumer apps. See http://glinden.blogspot.co.uk/2006/11/marissa-mayer-at-web-20.html?m=1 http://glinden.blogspot.co.uk/2006/11/marissa-mayer-at-web-2... plus like you say PHP might be faster to get started with but becomes much slower on larger projects due to inconsistent error handling and language design.