> So as a producer you have more expensive process and less consumer satisfaction...

This is illogical. People buy decaf for several reason, that don't include it's taste. Either they're allergic to coffein, they get nervous from it, they get elevated heart rates from it, or want to enjoy a coffee in the evening. All of of these reasons are fulfilled, therefore satisfactory.

Personal note: I don't taste a difference in caf and decaf and ALWAYS prefer decaf.