Naturally, given the random nature of adventures, they tend to choose their magical weapons, armor, and other accessories for use in as many situations as possible. Cosmetic details don't matter.
Except of course, that cosmetic details enliven the tale, make the objects less like plot devices -- or less obviously like plot devices -- and underscore the random nature of the world. . .
Make some of the weapons not swords. Make some of the protection not armor. Vary what type of additional damage it inflicts.
