I say get rid of charges althogether, just have the enchantment stay on at all times. Same with weapon condition, both these feature while somewhat realistic added nothing good or fun to the game. Take them out.
I've come to disagree on the weapon-quality issue, though I don't quite like its previous implementations. But, it has become an acceptable part of the RPG genre, since
Rogue and
Nethack.
Limited charges on swords, bows, and similar weapons, though, are an irritation unique to TES.
I hope they don't have any visual que that a weapon is enchanted, it should have some effect when striking an enemy but not when it justs strapped to your back. I asked this in the Q&A, hopefully it will get answered.
I do like the effects of magic weapons, as long as they stick to the business end instead of being universally-applied Plastic Wrap. I love LAME's weapon-enchantment effects.