I am pretty sure that Google provides a lot of those services at a loss, or at the very least, they can synergize with other projects they have in way that just

I am pretty sure that Google provides a lot of those services at a loss, or at the very least, they can synergize with other projects they have in way that justifies the cost. Either way, people will choose the free option rather than the option that requires them to pay even a nominal fee, particularly for software that people have gotten used to getting for free.