Would you consider making a stale dataset (3day, 1 week, idk..?) available for other projects (but also protect your revenue stream?) I assume the value in the paid option would be real-time updates but I'm not sure exactly what the target consumer is

Yeah been thinking about that. A delayed public feed or an API with a lag makes sense. The real-time piece is where the paid value is so anything older than a few weeks/months could be opened up