Regardless of how much the hardware and services already cost, the company can always make more by showing ads too? Meaning, no profits or prices are high enoug

Regardless of how much the hardware and services already cost, the company can always make more by showing ads too? Meaning, no profits or prices are high enough. (Unless they show far too many so people start leaving ... That threshold might be high though; Linux is too cumbersome for almost everyone?)