It gets even worse as you look at some of the (not very well thought out) features.
Take Groups for example,
Within Outlook you create groups to share email, files, calendars. Sounds cool until you wonder why Yammer or Sharepoint or even GroupMe are still around since they all duplicate nearly every single feature.
And then when you try to use Groups you realize:
- Can't add people outside your domain (ie - non subscribers)
- Emails sent via Group still require awkward 1980's era REPLY-ALL which is a complete fail once the first person forgets ""REPLY ALL""
- The mere existence of Groups paralyzes you from investing time in any of the other myriad Office groupware (Yammer, Sharepoint, etc) because you aren't sure which one Microsoft is going to bury and you don't want to adopt a loser