I live in the mountains of Western North Carolina where tropical rain forest like enviroment destroys cables and housing like mad. I usually don't go for the bling-bling focusing more on function but these sealed Nokon cables are nice and claim to be able to last 3 times longer then standard cables.. I've only had one wet ride on them so far but the inner shealthing that runs the length of the cables seems to be do a great job of keeping moisture and grit out. The other thing I've noticed is the lack of cable stretch which is great.
Jeremy
Jeremy