Bottom line:

I can't take the chance that there is a date-encrypted subscription key in the next update. It's not that the $500 yearly fee is a problem. It's that I need to know that I have access to the software after I close my practice (which may be forced upon me with Predatory Hospitals, reimbursement, "urgent" care centers and such). I am required to keep a copy of my medical records for upto 28 years for children (8 year discovery period from the age of majority).
What is sad is that I implemented being paperless hoping for increased efficiencies and now I will have to start printing and filing again. It's a shame that attorneys write EULAs so that other attorneys are needed to decipher the EULAs. I don't know if EULAs really protect anyone. As SirTopenHat would say, "It just causes confusion and delay."
Regardless, this whole EULA controversy has had a "chilling" effect this summer. I have cold feet. I'm going into the pool only after dipping my toes several times to ensure there's no pirhanas (not head first as before).

Thanks for your thoughtful opinions.