You never play Bethesda RPGs for story.
I like to call them "Atmospheric RPGs", but they're essentially RPGs about exploration and being immersed in the world. The overall story is generally subpar or unsatisfying, but it's often made up for in just the sheer amount of STUFF to see, do, hear, and get lost in.
The rebuttal is often, "Yeah, but if I don't care for the overall story, I don't see why I would care to explore that world" and I get that, and it's fair.
But the Elder Scrolls games really do have a very rich mythology and wonderful scenery and atmosphere to take in and explore.
I put in just about 100 hours into Skyrim when I first played; and maybe 3 hours of that was the main quest line. Seriously.
It's funny...as soon as I had explored everything in the world and been everywhere on the map (and I like to dawdle and take my time), I just lost interest.
Still though, I got many, many hours of fun out of it even just doing that. Oh, and of course, there's these things called "mods" I hear they make for it too.