Price? I am confused

Is the enterprise plugin the only one that works for buddyboss? I am reading the difference between the two plugins. I am wanting to start a second site, and I already have the enterprise option. I paid $90 though I am pretty sure.. I am curious if you sell multiple license for a price break or if they are all individual.

I am reading that you do and it says they are heavily discounted. I am curios how I can get a second enterprise license and what additional cost there would be.