re: EHRs: Waste Of Money Or Wise Investment?
I agree with one point made: each vendor EHR/EMR is different, and there is no impetus, requirement, or standards for interoperability.
So never mind about 20 years off in the future, what if your doctor retires next year, and the new Doc uses a different EHR? your records likely are not going to be usable in Doc #2's practice.
Another issue is the fragmentation of the Healthcare profession. Each specialty has their own little niche, jargon and method of recording patient data. The way I look at a typical hospital, it is a "Data Silo Farm".