Agreed. And it's removal is a limitation (albeit a minor one). Trips to merchants are neccessary anyway, I never really found repairing troublesome. (DD, D2, Titan Quest, can't really think of any other games that used it).
Titan Quest didn't use any form of durability/repair on equipment. Everything kept its same quality throughout.
But, I agree. Repairing would not be bothersome. I actually prefer the added complexity of managing worn weapons, although I fully understand why some people find that aspect of gaming tedious. I think that removing durability is a good thing overall, as more people would be annoyed by its inclusion than would be bothered by its removal.