Hi Greg,
Do you have a another VCP already or have you done an ICM course?
I ask as I would REALLY recommend the VCP over the VCA.
The Associate level exams seem to be very poor quality compared to the VCP/VCAP/VCIX exams. They are a random mix of sales/business requirements and technically detailed questions.
I don't believe they are beneficial.
For overviews and solutions knowledge (if you have partner access)
The VSP/VTSP Partner Accreditations are much better than VCAs
For Technical knowledge and demonstration of understanding
The VCP-NV (now 6.2 version) is industry standard (not many employers would recognise a VCA level qualification)
For practical lab-based demonstrations of your skills in NSX
The VCAP/VCIX track and lab based exams are much better.
I appreciate that if you don't have an existing VCP or have done NSX ICM, then VCP may not be an option. But personally I found the VCA not worth the money compared to VCP-NV and VCIX-NV.