Less than that actually if it's personal (O365 Personal 1TB, Home up to 5 I think), or a little more for business and get OneDrive+SharePoint and hosted Exchange email. Works nicely on Windows 10, a little less so on older versions, and probably a lot less well on *nix which is relevant since a lot of folks on this thread are concerned about the loss of ZFS support. Not sure how it is on OS X but hopefully decent.