How about good offline back ups? Then you don't have to pay and hope you get your data back. Of course you still need to to figure out how they got in and lock it down so it doesn't happen again and there will be downtime as things are restored. However your are already down at that point so that doesn't really make a difference and by paying you are encouraging the behavior.
They don't just start encrypting stuff as soon as they have a foothold. They spend some time on your network siphoning out valuable data, compromise backups, and staging for re-entry.
