Would love if someone with experience could chime in. I've been reading about the geo data market for over two decades now but still have no real sense of its v

Would love if someone with experience could chime in. I've been reading about the geo data market for over two decades now but still have no real sense of its value. What does this data typically cost? And can you specify particular locations/targeting points, or do you just get whatever's available in a broader dataset?