[jmanderley]

It's more expensive to get the subscription even if you do upgrade regularly. And I don't think most people buy the latest version of Office with every release. And what "monthly improvements" are even needed? Office seems pretty feature complete for most use cases.

[Omnius]

You also get several installs, cloud storage, and the IOS apps. I would buy it outright for home but for my users in the office the subscription model works great.