@CO:
Regardless of when a franchise calls it quits, how does the legacy of the franchise affect your enjoyment of the franchise? I just don't understand why this bothers people. A legacy is more about how others relate to the thing you like rather than how you relate to it, and why would you care if less people like what you like because the legacy is diminished?
Do you actually enjoy watching the OT less because of the PT? Should you need the PT to recognize the flaws in ROTJ?