I think there are only 15 (25?) vet schools in the country. They are notoriously difficult to get into and notoriously difficult to STAY in.
The difference, I think, is that is a large proportion of people who go to vet school because they love animals. I'm not sure there is a similar proportion of people who go to med school because they love humanity...
Certainly not, if my (former) doctors are any indication.