Yeah, I was talking about either DT Swiss or Wheelsmith spokes and brass nipples (found some painted black). (I know Sapim is a well-regarded name, it's just easier to find DT Swiss sold individually).
Well, it sounds to me like I won't have longer lasting wheels by choosing black spokes and nipples. Thanks for taking the time to answer.
By the way, I read a couple of messages on the Internet someone claiming black spokes break more frequently. Could there be any truth to that?
Would there be any benefit to putting wax over your nipples once the wheel is complete to keep water out?