Dagobah is the very opposite of everything Disney represents. It's a hostile, dirty, smelly and dangerous swamp filled with mud that will suck down your X-Wing (or Saturn Coupe) in a matter of minutes.
Nothing about Dagobahland sounds interesting, though Disney could convert the Swiss Family Robinson's tree house into Yoda's tree stump.
Still, that may not be enough to make even the most dedicated fan want to spend time there.