apcs13 :
If you're going to SLI, get a 3GB VRAM card or higher, that 2GB is going to limit you in the future. Otherwise nice build.
vram will only become a factor if he wants to game at higher resolutions or on multiple displays. for single screen 1080p gaming, 2gb of vram is sufficient.
if getting a 4k monitor is in his future, or he already has a triple monitor setup, I would agree with you that he needs more vram. but without further info, its hard to say what his long term intentions are.