I'm old enough to remember serious outbreaks of parvovirus in the 1980s. It still happens to unvaccinated dogs, especially in kennels and pounds. It is the most horrible, painful, miserable way for a dog to die (and die they usually do when they get it).
I do vaccinate for the same reasons that I believe vaccination is a brilliant step forward for human health care. There is also the issue of herd immunity which helps to reduce outbreaks of disease.
You should also be aware that if you wanted to put your dog into kennels, they will want to see an up to date vaccination card, and during the summer months particularly will also insist on kennel cough vaccinations.
Our vet also provides an annual health check alongside the vaccinations, so it's a good opportunity to discuss and review your dog's health, weight, any changes, any health issues etc. It seems very sad, and quite insulting to your vet, to regard them as just a profiteer, and out for a quick buck.
Perhaps some of the vets on here could give a more detailed response?