Our local vet hospital was bought out by a corporate company, and the prices have indeed risen, as well as many unnecessary (in my view) tests.
But I do see the reason why many vets have sold their clinics. Instead of being a business owner, in charge of managing staff, building, payroll, etc., the new corporation either pays them a salary, or they are part owners that get salary plus a percentage of the profits. The corporation can make the investment in updated equipment, which can be a hardship for smaller clinics. The corporation hires staff and pays them, as well as does all the bookkeeping. It's much easier for younger vets starting out to get a job a a clinic, rather than them needing to invest in a clinic themselves.
I miss the old way of things, and I think now we have to go to the clinic with our pets knowing that we could be up-sold procedures, food, flea prevention, etc. Kind of like going to a mechanic, do a bit of research before you go.