A business model based on data hoarding will never last long-term. As soon as one open source player steps up that's 60% as good, it's over. Like Encarta or Britannica vs. Wikipedia.

Lasting value comes from the software in between the database and the view. In the case of encyclopedias or maps, the software is the most trivial part.

I really think Google Maps will die. It's just unlikely that for the rest of history, no one will improve OpenStreetMaps to the point that it is competitive.

You need a massive amount of capital to create a redundant data set that has a death clock, doing nothing good for the world but extracting some small rent created by antitrust laws. No thanks.