v-Ray or NOT v-Ray for VMware?

Hello everuone again.

I have doubts about v-Ray or not v-Ray edition for VMware infrastructure.

I want to be able to backup entire VMs (I don´t care to backup the ESXi hosts).

With a regular Backup Exec 2012 + VMware Agent I am able to do what I want. So I don´t see the point of v-Ray Edition!

Could anyone please calrify so I know what to recomend to my customers? What about licesing of these two products?

Thank you in advance ;-)