You're definitely right about case/precedent information, but what we've found is that there's a whole other world of info that can be neatly organized with a lot of crunching, and a small bit of manual manipulation.

The big guys chasing this are highly focused almost entirely on lawyers, in the context of providing them case analysis tools. We've found a bit of a different niche which doesn't need as much fidelity/granularity to the information, but needs it nonetheless.

In any case, I'd love to chat about your experience, even if a decade old. Can I PM you?