That might be the case for a novice programmer who doesn't know about aptimization but for professionals there is no way they would do this.....
Right, and so EpicBoy, being someone who lives off of the income he gets as a programmer, isn't a 'professional'? Professional programmers are invariably people who get results (which means they justify their paycheck), not people who sit around all day doing pointless optimizations to save a few, mostly worthless, CPU cycles. Honestly, you have no idea what you are talking about.