https://searchenginewatch.com/2016/05/31/the-most-expensive-100-google-adwords-keywords-in-the-us/
A local law directory would be worth making.
Wow.
I have a one-word dot org domain name for a class of drugs that I built a one-pager for based entirely on a single NYT article saying that it was linked to a medical problem. I figured a lawsuit would be coming so I nabbed the dot org right away and summarize the NYT article. It used to bring in up to $100/month in AdSense, but then I never did anything with it... makes me think I should sell it (in the post-Panda world it will never get organic traffic again without massive infusion of time and money).
Just did a search - Merck settled in 2014, so that would also explain why there's not much interest now.
Makes me think I should have kept my old mesothelioma and lemon law site. I used to get $7 per click on the mesothelioma site but the traffic dried up after a year or so. $900 a click would have been nice!