I had been informed about 2 months ago about some zinc shortage. We bought several cases of all kinds of die cast fittings, lb's, etc. We purchased at the price before it went up. We also bought 2 semi loads of wire when 12/2 NM was $44 a roll. If a rep tells me things are going to double I take a look at it then decide if we should purchase in bulk. Myself I always have liked the steel but for price reasons we always used die cast.