Its too bad that you're stopping here since as was mentioned before, the other two major quest arcs are definitely better in the writing/presentation department versus the Dragoon arc with its far more straight forward setup (both in accessibility and writing).
I guess I sort of don't see it as stopping so much as leaving myself something to look forward to.
I do this often with some of my favorite games. I put off getting to the Pre-Sequel in Borderlands, after I finished borderlands 2, for like a year til I REALLY needed a shooter. I have the DLC and Post Game in Disgaea 5 in my back pocket along with the DLC to Bloodborne and Dark Souls 2 as well. These are games that I know I'm not going to be able to avoid wanting to go back to in the worst way at some point and leaving myself content to go back to makes that enjoyable/enticing for me.
^^ These titles play a special role for me in my gaming agenda as they become titles I pick up purely for enjoyment, can easily put back down without some retarded overwhelming sense of obligation (that I totally spin in my own
And on that note...
BORDERLANDS PRE-SEQUEL/ In chapter 5 and hunting down an military AI. Core to construct a robot army at the moment. I picked the lawmaker/cowgirl class and am SERIOUSLY happy I did at this point. My first experience with this game I picked the Doppleganger (of Jack because I love Jack's character) and this chickee's "Showdown" skill makes the game infinitely more enjoyable. I gotta hand it to the Dev's for including classes that don't rely on being so accurate or "neat" with your gunplay as its part of what makes borderlands feel somewhat unique to me and far more accessible (I'm referencing the Mecro-Mancer class from BL2 here as well).
The only thing I don't like thus far about the Pre-Sequel is the platforming elements. To put it simply, jumping around in moon gravity can get frustrating. They rely way too much on vertical level design that relies on it and I can't help but feel that the straightforward design in BL2 just worked much better for a fluid experience.