I too was shocked by the price increase.  I called support to try to get an understanding of what benefits were being added to justify paying almost double the price for the QuickBooks ProAdvisor Desktop version.  I spent a great deal of time on hold waiting  for answers after first receiving the generic "new features and benefits" to still receive no concrete information.  I was also told if I switched to the Pro Plus instead of the ProAdvisor package I would no longer be able to import Accountant's copies from my clients.  Very frustrating!  And I agree that the QBO online is not an option for working with many of our clients files.  It just doesn't have the same capability.