copper vs pvc compressor lines?

Researched this subject quite a bit due to building a new shop and needing to plumb in a compressed air system. Don't use pvc, period. Many people do and some get away with it, for a while. I have used it in the past but wont do it again. Besides all the previously mentioned reasons, utraviolet light will also break down pvc over time. Sun shining on it continuously through a window, next to a welding area, ect. Never got a good answer to the effects of compressor and tool oils on it over time but it is designed for water not petroleum products. For me copper was best but most expensive, followed by black pipe (corrodes internally), galvi pipe, and pex. All work. Good system design and a quality air/oil separator, especially for paint work, are essential. YMMV.