I agree that the situation certainly does suffer from continous aggravation through the piles of insults and disdain for the preferences of the other.
To me the central argument is - as you said - not about preference, it is about completeness. At the end, every fan (even if some may not admit it openly) would love to have a boxed set of the entire saga with all the bells and whistles and every version of the films that has been in existence (Blade Runner comes to mind).