Personally, I'd just as soon there weren't superior weapons at all. But I'm kind of a curmudgeon for that kinda thing.
Swordmages also don't have very many high-[W] powers, even at high levels. And they have a lot of Implement spells, where the [W] doesn't matter a bit. For a swordmage, Weapon Focus will almost always beat out a superior weapon.I know my swordmage never did. The upgrade to bastard sword wasn't worth it to me, there were too many other feats to grab.
Could you explain why? Is it about realism, or is it that you assume every weapon-wielder will automatically use one?

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.