Are there not open source fonts? Seems like this ecosystem would be very large, since so many designers want to enhance their portfolio. Basically any font should be a commodity.
You're missing two things. First, the history of typography - fonts were not always free to copy and use when there were physical parts involved. Second, fonts are something that take a lot of work to put together, especially when done well. Most people can't devote that kind of effort for free.
That said, open source fonts are definitely on the rise. Many people don't have a problem using a font that isn't quite as refined as the classics, and some enlightened companies are bankrolling development.
That said, open source fonts are definitely on the rise. Many people don't have a problem using a font that isn't quite as refined as the classics, and some enlightened companies are bankrolling development.