I think there are currently 7 of us left after the 1st semester (something like 30 started). Overall, I am really enjoying it, especially since it's a break from science and helps to stimulate conversations that have nothing to do with vet med, haha. Currently with taking the normal vet school schedule along with the business and an exotics elective, I am at 25 units and in the fall I'll be at 26 units. There is definitely added pressure with more HW and tests, which at times can be a real doozy, like having 6 finals this upcoming week instead of 4, but I do plan to continue with it all the way through. In terms of scheduling, there are enough options for class times that I do not think you'll ever really be in a situation of taking a business course vs. vet school elective/selective. It does cost extra since it's not officially a part of the vet school program, but it's reasonable. Just be aware that if you take a class during the summer, the cost is substantially more.
They are undergrad courses, so they don't specifically deal with a veterinary business, but really, a business is a business. I feel that with taking these courses as well as being an active member of the Veterinary Business and Management Association, I am learning a ton and feeling much more comfortable about understanding the basics of all businesses. Personally, I do hope to one day open my own practice, but who knows, nothing is certain about the future. I also know I want to make sure that as an associate, I am not completely in the dark about my employer and I think these classses will help. And just knowing myself, I know that once I'm out in practice, I will have no motivation to take business courses, so it's nice to develop the background now for me. Will I remember it all? No way, but it will be much easier to recall than having to learn it all from scratch.
So that's my 2 cents. It's definitely not for everyone, but I do feel it's worth looking into.