Pro 2010 and presumably 2012 has 10 render nodes available to the user.

If you want a site license, you will have to contact SMS's sales directly to find out if they are now offering one.  I don't believe CL or EF offered that option.

All our copies come from single licenses and our upgrades are generated from those.

One dates back to P3, a couple come EF's free P5 giveaway, and a couple more from EF's P6 Leap Year special (Passport members could buy P6 for $2.29).