I have finally succumbed to my desperation for a couple of the elusive M&P 9 mm magazines. After being on a back order list at Streichers since February, I ordered 2 ProMags from Cabela's site. Price came to <$60 including shipping. So far, all of the reviews that I have seen for the ProMags for the M&P have been positive. Hope I luck out and will keep y'all posted on how they perform. I just cannot see spending over $60 for used mags and $100 for new factory mags. Still keeping the 3 factory mags on back order, though. They were ordered at the $25ea. price.