Bitcoin can't unfry a hard drive

from here and here

While it's true that some ransomware operators have incorporated blackmail into their business model so that simply restoring from backups is no longer sufficient to resolve the incident, many if not most victims still seem to be unwilling or unable to recover from backups. It's as if they think ransomware is all they need to worry about and they can simply pay the ransom to get their data back, as if that's just the cost of doing business. 

That cryptocurrency won't uncrush a laptop, it won't unflood an office, it won't stop a fire, or any of the other sorts of disasters that really would benefit from backups. Backups are still the best way to get your data back.