In Poland you can get one without doctors referal (for CT you need one because of ionizing radiation exposure), it cost between 100-200$ in normal, reputable hospital (not one like from the street view).
From my experience ability to turn equivalences to equlities and vice versa is very usefull. Without this you are ending in setoid hell - intracable mess of isomorphism. I suspect that also Higher Inductive Types have lots of potential to simplify practical verification effords (apart from obvious usecases of quotients and truncations)