I mean you've basically created an invincible argument. You don't care about it, you can't imagine anyone else cares about it, the fact that everyone else views it as a marketing point doesn't mean anything because it's "just marketers", the fact that other more successful phones emphasize it doesn't mean anything. Unfortunately, I can't even argue that the phone's success or lack thereof will demonstrate anything, because you've already sealed that up by saying that if it fails, it'll fail because of a myriad of other problems. Even if you were wrong, there's no way we'd be able to convince you.
I value video chatting, both from my computer and from my phone. My relatives all do. My girlfriend and her relatives all do. I don't think Apple crows incessantly about FaceTime because it's a checkbox, I think they do it because it's something people are interested in. I think the same is true for Microsoft. I don't think Microsoft bought Skype for voice, I think they bought it for their whole value proposition, which very notably includes video. Every time Skype partners with anyone, the emphasis is on video chat. Again, your assertion is that it's just bragging rights and no real people care, but I find it very hard to believe when you consider the sheer diversity of companies who have made this a centerpiece of their offerings. A front facing camera is increasingly a standard feature of a smartphone, and they opt out from providing one at their own risk. The costs are also marginal, particularly if the front-facing phone is cheaper than the rear-facing phone (which is the case with the Galaxy Nexus).