Right now, yes, agreed that to "set up your own server" is not for the casual user...but eventually setting up a server should be as a straight-forward affair -

Right now, yes, agreed that to "set up your own server" is not for the casual user...but eventually setting up a server should be as a straight-forward affair - not unlike installing an app from an app store/marketplace. Also, remember that there was a time when casual users would go through the set up of local/desktop clients in order to simply read/write email - e.g. outlook express, thunderbird, apple's mail app, etc. Whether we call it setting up a server, or installing/setting up an app., eventually it won't make much difference.