For me, it's almost entirely nostalgia. Comics and superheroes were a big part of my childhood and teenage years, and I still dabble in reading comics. But as I get older and my worldview gets more coherent, the stories are becoming less meaningful and more, "What will the good guys do to get out of THIS jam?" There are still some gems, but I admittedly mostly consoom capeshit for the sole purpose of seeing my favorite characters working together to overcome the conflict.