I know that is a thing that companies do, but what are the examples of this actually working out? I have a hard time working out the economics of it. Unless th

I know that is a thing that companies do, but what are the examples of this actually working out? I have a hard time working out the economics of it. Unless there are strong network effects that advantage incumbents, as soon as they raise prices isn't there immediately an opportunity for another VC to swoop in and undercut?