I give my own vaccinations (except for rabies - and I'm 100% OK with that: this Radiolab Episode will put a healthy dose of terror into you!). I took a vet tech class in college and it is something I can do myself, so I do.
At Tesla's barn, the gals were setting up a barn visit from a local vet, and I opted out with a quick email "Took a vet tech class in college so I give my own vaccinations :)"....
Little did I suspect I would get a novel in response (forwarded to all the other barn girls as well):
"As a former veterinary technician I am capable of giving my own vaccines, but I choose to support competent and skilled local practitioners so that my horse(s) may benefit in the long run by having access to their skill and knowledge as needed. My veterinarian in another state will still provide consult to me because I chose to support her business and treated her with respect. I'm not at all saying that choosing to vaccinate your horse is lacking in a way, just that it is extremely difficult to find local quality veterinary care in the area for sport horses and I feel it is money well spent. I'm hoping that Dr. X is that provider, based on my knowledge of his past practice and my experience with him thus far. "
I guess I better keep it under wraps that I do my own trims/Masterson method at this barn ;)