I know exactly what you mean. One technique I've used is to express things in terms of what they can uniquely get with the new system that relates to their need

I know exactly what you mean. One technique I've used is to express things in terms of what they can uniquely get with the new system that relates to their needs. In the case of iPads, some of the accessibility benefits such as requiring less fine motor control may tip the balance in favor of adoption for some. Best of luck!