While I will not argue that you should trust your vet (and you should), where rabies and public health are concerned, this is one fight you cannot win. Should your dog ever be exposed to a rabid animal, his vaccination status will be quastioned. If his vaccination was outside the legal limit, he will be euthanized. Right or wrong, this is a matter of law. It has to be black and white, no gray areas, because human health is concerned. In order to change the law, the burden of proof must be shown beyond a reasonable doubt that any new vaccination protocol is safe, and effective at preventing HUMAN rabies. Remember, we do not have universal rabies vaccination for dogs to protect THEM, it is to protect US.
You may choose to vaccinate as you wish. However, absent the abstract, cerebral, internet discussions, rabies is a real disease, and a real threat, particularly in the Eastern half of the US (all 3 2007 dog-to-human rabies contacts were in the Eastern US). If you choose to not vaccinate as the law dictates, you stand the real risk of losing your dogs. This is a consequence of your actions, and you have to know this going into the situation. Has your vet discussed this with you?
Greed of vets has nothing *nothing* to do with it. Neither does vaccine company greed. Most rabies vaccine doses are given free or at reduced cost (local rabies clinics are still free in many locales, particularly rural ones). Rabies vaccination is legally mandated because rabies is a serious, 100% fatal disease, that occurs in all mammalian species.
You are free tpmake choices as you wish. But what saddens me is that people like yourself jump to choices based not on fact, but on internet rhetoric. Rhetoric which, in this case, usually comes from apartment-dweling urbanites with no grasp of how things work in the real world. The reality is, wildlife rabies is on the upswing. And after many decades of no canine rabies cases, now we are starting to see them again as well. And human rabies is on the rise. Rabies is not nor has been anywhere close to being eradicated. Vaccination of dogs, cats, and livestock is our only protection against this disease. Please check out the CDC page on rabies before jumping to any decision you may later regret. Get the facts. And then get your dogs vaccinated.