Don't put too much in the 2 kinds of people, it was just to point out that some people are buying their gear because they love gear and have a passion for photography as well. While other people doesn't really care about gear, but love photography.
I believe most people know someone who picks up the tool, nomatter which one, and gets great results with it nomatter what. Then there are the more gear oriented people who need the best gear available or they think they can't produce.
Also as I said, most (if not all) people fall somewhere in between the two and some more or less to the extremes.
I still believe anyone saying the 5D mk III is crap due to sensor performance is more of a gearhead than a photographer. I also belive that anyone saying that performance doesn't matter because any camera in the last 5 years are sufficient are more photographer than gearhead. I'm not saying one is better than the other (I even said that I'm a bit biased towards gearhead myself), I'm just saying this probably is the reason why 2 fronts cannot agree on anything even though they've been debating very hefty the last month.
Basically what I wanted to say is that all the arguing is pointless, people will buy what they feel is the camera for them. Who is right, who is wrong? I believe those that are wrong are the ones buying a camera without considerring their needs are, no matter which camera it is. Same thing the other way around, everyone who has made a well-considerred decision are right, no matter what camera they end up with, because they bought what they needed.