they expect you will use one PC at a time, as I understand it.
This is what ruined my 'PG Server' idea .. multiple (VM) systems running from one install and drive array.
Imagine if you could have RB running in different rooms using different virtual machines .. even if they were all technically on the same server (either as VMs or as different users on an terminal server).
That would be cool.
Another reason it failed is the server OS wouldn't run my multi In/Out sound cards ..

/Yeah I tried it .. I made my music machine a 2008 R2 server for fun. Worked better than I thought. Had all kinds of cool stuff running on it, but no music.
So I re-installed W7 .. it was the only legal OS I had available at the time.