I don't do yearly checkups. If something is wrong, off to vet we are.
If there is nothing wrong, imho chances are slim that a vet would find anything of importance either, and there is the risk that something gets treated that's not treatworthy.
I rather save the money for moments when I need it, makes it easier to go if there is just a concern but nothing really to point at.
Might be somewhat different with breeds that are prone to certain problems, like lops and ear issues.
Vaccines, well, depends on where you live, if those diseases are in your region, and if there is a wild rabbit population in your area.
I now live in a valley where no rabbits are, too many predators and no suitable envirnment, that makes my rabbits pretty safe. But I had an Myxo outbreak when I lived at a place with a big wild rabbit population, I'm glad I'm out of there.