"Can we move our epic showdown back a few weeks, I've got some mending to do."
Also, just because comic book fans tend to be ripe with three days worth of ball sweat (According to Ruby, "It's a known entity called 'con funk.'") doesn't mean their favorite superheroes are fighting crime in the same body suit they sweat through the night before. Assuming you're not as plot-hole spacklingly rich as Bruce Wayne, that means every little creative flourish costs you however much time it takes to execute by hand multiplied by however many costumes you need to keep from smelling like a taint.
To create that Loki costume up there, "took hours to assemble all of the scale mail. And anything like the horns that involves more than just sewing is really difficult."
The awesome horns would probably stop seeming worth it somewhere around the second time you had to carve them by hand.
After speaking with Ms. Rocket, we're pretty convinced that the only costume that makes sense for a serious crime fighter is, "Thrift Store Man." Otherwise, you're working a full-time job by day, fighting crime by night and doing 50 hours of beading work every time you run into a guard dog, all because you thought it'd be cool to look shimmery when you first designed your costume.