JediZombie said:
It's a giant universe with endless stories to tell. Why shrink it down to just this one?
Because many of the "endless stories" that have already been told (e.g., EU, PT, and TCW) aren't as appealing as the one (OT).
The PT isn't a "hero's journey", doesn't feel like "the old west in space", and lacks the "used universe" aesthetic. I gather that most OT fans expect one or all of these qualities when looking for more Star Wars. I know I do.