My understanding is that demand for stainless spokes has gone up and for galvanized has gone down. And it seems that the price difference has almost gone away, so there's not much reason to prefer galvanized any more. Are they still available cheap? I used DT galvanized in 1983 to build wheels for my commuter bike. That's before the company was called DT Swiss. They were the best galvanized spokes around at the time. I suspect they don't make them anymore.