Why wouldn't people pay for something highly useful? It seems the opposite, that people would pay for things that are highly useful. People don't pay for things that are marginally useful.
> Why wouldn't people pay for something highly useful?
Typically because they can easily get it for free. Perfect case study is WinRar. How many people actually bought a license for software they used daily?
I think you're missing a case here -- if they remove it, and they can get along without it without much trouble, I'd argue it isn't highly useful. Just because it has frequent use doesn't mean it's highly useful.
