B - Google does and will continue to capture that traffic, and it will continue to get better. Case in point, I read earlier this week an article about a site devoted to celebrity net worth and how their business was eaten up by the change.
C - Agree that more involved information is safe or safer.
But you know, it is obvious that Google will continue to eat up more and more queries. I don't know what percentage they are currently able to eat up and keep to themselves, but they are surely devoted to upping that rate. So as a long term play, do you really want to put yourself in competition with all the Google data scientists?
I think it's the best strategy. If you have a business, like the celebrity net worth one, you're in trouble. It's worth keeping in mind these days if your business has long term staying power based on the trends we know are currently underway.