It's more a ton of inertia than some sort of monopoly. A lot of new companies immediately start on an alternative these days. They don't see a reason to pay the

It's more a ton of inertia than some sort of monopoly. A lot of new companies immediately start on an alternative these days. They don't see a reason to pay the higher price. I agree that it's a lot of work to build something that can render and edit their complex format, but quite a few companies have managed now.