Personal is cheap but too basic (keeps file versions for 30 days only, no backup on external drive/NAS). B2 is seems to be too expensive for my 1TB of data.
They also lacked a data center in EU, learned my lesson with Crashplan on that one, though I hear that is about to change.
Currently I've settled for Acronis True Image. Not exactly the same, but more options, faster to get things running again after a proper HD crash (tried that a few times already) and they're cheaper than B2.
But yeah, had I been a customer, the price hike would have been totally fine.