Practicality and Efficiency: People crave the easiest and simplest solutions to problems, and value their time over everything
Optimization: Rather than have a 10-digit keypad, it is much more aesthetically pleasing to have a full keypad with a large screen, that performs better than the traditional cell phone
Intelligence: A feeling of intelligence and the ability to state one's class, that's why most people save up large amounts of money for the newest iPhone