I think a lot of the inspiration for negative feelings and comments is that security (while it now 'includes' it) is not the IT industry. I've only been in the industry for about 7 years, IT and military experience before that, but I hear stories about the early days of the industry, conventions with people in patent leather shoes, slick smiles, and lots of grease for your palm.
The IT industry, while similar in age to surveillance and access control (at least similar versus the paper industry), is much larger and more mature. In the IT industry, manufacturers expect that if they release something new, CNet, 200 other professional websites (or more if a major release), and 27,348,312 blogs worldwide, will have released some sort of review or commentary within a day or two of the release, and that probably half that much will have happened before the release. How many articles were written predicting the new features of the iPhone 5 or Windows 7 before they came out?
In the security industry, the old guard way of doing things involves consultants telling large end users (schools, gov't agencies, large companies, etc) what is right, and what is good. This often filters to other users when someone actually likes what they end up with. Honestly, in my experience, a lot of what consultants recommend is not well thought through, well-informed, or tailored well to the end user/organizational needs.
The other major people have traditionally learned about products is through product rep firms hired by manufacturers, and the outside salespeople from product manufacturers who are employed by the manufacturer. These are also the same people who, as anyone in the industry more than a week knows, are heavily influencing consultants through a variety of means that will go unmentioned.
A third way that I consider more minor is industry publications, but I think most of us take any article written for example in SDM or security executive or whatever with a grain of salt, because we don't really trust that they're not being influenced by the manufacturers who pay their bills through advertising.
I'm not really familiar with any other groups in this industry that really do what you do - provide independent analysis that people really believe is independent. You're what we call a 'disruptive force,' and like changing a child's bedtime to an earlier time, people are naturally disruptive to change when they get set in their way of doing things, and as a result there will be tantrums. As people get more used to it, this and presumably other similar organizations and maybe at some point publications people trust will be more the norm of how people get their information about new products, and there won't be as much resistance.
And - I don't know anyone in person that's ever heard of you or IPVM that I'm aware of, not that I ask many people, but it has come up in conversation.