Microsoft recently announced cloud storage for OneDrive for Office 365 subscribers would be unlimited. Let's think about that for a minute.
At 1 TB of online storage, it was already an awesome deal even if you don't ever use Microsoft Office: $7 a month for individuals or $10 for up to 5 users. You can buy an Office 365 Home 1-year subscription key card for $67 on Amazon, effectively reducing your cost for up to 5 PCs/Macs/tablets (yes, share the install with your distant cousin) to $5.58 a month. Compare that to Google's and Dropbox's $9.99 1TB plans.
Office 365 now includes unlimited OneDrive storage in addition to the Microsoft Office suite.
The unlimited storage is rolling out over the next few months for Office 365 subscribers. You can put yourself at the front of the list by signing up here.
I'm really surprised other sites everyone isn't making more of a big deal of this. OneDrive isn't as quick at syncing as Dropbox, but for unlimited storage plus Microsoft Office, Office 365 is to ignore.