Moreover, doctors and hospitals will be more concerned as the insurance company will insist on diagnostic reports while making the payment. In a way you are right. We need to do some amount of concept selling. Take for instance the B-colour facility in ultrasound. We have found through clinical studies that human eye is more sensitive to green than grey.
Human eye is better sensitive to colour thereby giving a better tissue differentiation.
But doctors opt not to buy it. It is not just the question of their need or finances. Like, in case of CT scanners, conventional one costs less than a crore. Spiral CT costs 1.5 crore. But very few opt for the latter.