Just to add to the confusion, lol, this reference below seems to suggest that I can host as many VM's as I want, but for every two VM's, I'd have to purchase another license of Windows 2012 R2 Std?
"Windows Server 2012 Standard Has all the key features. It supports up to 64 physical processors, one physical environment, and up to two virtual instances. Two incremental virtual instances and two incremental physical processors are added for each Standard license. Thus, a server with four processors, one physical environment, and four virtual instances would need two Standard licenses, but the same server with eight virtual environments would need four Standard licenses. CALs are required for every user or device accessing the server."