The problem is you have to play with them - and sure, maybe they're willing to be the Costco to the unlimited backup's $1.50 hotdog - but for how long? Will their dedication to unlimited and particular price points mean you have to take Pepsi for awhile instead of Coke, or that your polish sausage dog disappears? Wait, where did the analogy go? I'm hungry.

It's a bit safer when you know your playbook - if there was unlimited (as it is now) and unlimited plus (where they backup "cloud storage cached files") and unlimited pro max premier (where they backup entire cloud storages) you'd at least know where you stand, and you'd change "holy shit my important file I though was backed up isn't and now it's gone forever" to "I have to pay $10 a more a month or take on this risk".