Ars Technica: A tale of two cities: Why ransomware will just get worse.
Personally I think it a bad precedent to pay such a random. The odds of such things happening probably go up when they turn out to be profitable rather than purely gloat factors.
However I do understand that not everyone goes into writing a disaster recovery plan starting off with the statement, "Oh fuck!, My computer just exploded!" as the baseline. I can just imagine how peachy most town and county networks would fair..... like a flaming car on a roller coaster track: descending into a pit of kerosene.