I have a lifelong friend who is a very successful investor and who has been habitually reading obits since his high school days. I recall his explaining that obits served as an opportunity radar.
I don't do it, but consider this: obituaries are clearly capsules of what people consider valuable and worthy about a person. This has nothing to do with whether they're true, or plausible: they're little windows into what one would consider surpassingly important.
It's like the saying about the Velvet Underground: 'very few people came to their concerts but everyone who did, started a band'.