From what I understand SAS BI / Enterprise server is now a legacy bundling of SAS products. A more recent bundling that SAS is promoting is SAS Office Analytics:
We as SAS specialists might call it legacy, but there are still a lot of customers using it, and it's still supported. And by looking at the product list, Office Analytics has a smaller scope than EBIS and perhaps a slightly different target audience (staticians/analysis personnel at small to medium sized sites). You need at least to add VA to start comparing the two.
The SAS Users Group for Administrators (SUGA) is open to all SAS administrators and architects who install, update, manage or maintain a SAS deployment.