I made a random list of awesome cosplay Why I made it? Well take a look at this:
Optimus Prime: The Cosplay versusOptimus Prime The store bought costume
Obviously the Cosplay rocks... It can Transform.
Cosplay Red Ranger versus Store bought Red Ranger Store bought is looking kinda good, but still it looks off.
One thing I HATE about store bought costumes is when they Make "Sexy" female versions of male character costumes.
I'm a fan of accuracy, not skankification. It's nice for girls to have a passing "nerdy" interest in dressing up as comic book characters, etc. But PLEASE do it ACCURATELY.