The VIRL team must be sick of all the emails begging them to raise the limits on nodes in the platform. The limit was set at 15 devices (not counting some devices like the unmanaged switch). Keep in mind that for many, a practical limit is set by the amount of RAM or CPU they possess on their host PC.
So if you are a licensed VIRL Personal Edition customer like me – on November 1, 2015, you get your limit raised from 15 nodes to 20 nodes free of charge.
If you want 30 nodes in your VIRL, this is a new product. Existing customers will get an upgrade price, holdouts will have a separate purchase price. 🙂
I have not gotten word on these costs yet.