[kuratkull]

This is incorrect for many sane reasons. You don't get any value out of your phone for every use, so paying that 0.02USD is not cheap. It's like a pay-per-use subscription. Everyone who deals with investing knows that absolute money means everything - every 1000USD you spend is much costlier because it never has a chance to collect compound interest of inflation-adjusted ~5% annually for the next 30 years. That works out to 4481USD that you are never going to have.