agreed, but micromatic is high quality. I am sure you can get it on amazon for cheaper lol.
SS is always better. think about humidity and the way that those QD work is with ball bearings which quickly rub off the chrome plating on the Male QD which then rusts. The brass females are fine for this, its just the steel male end that will rust. a non-chrome plated brass version would be better then the steel.
Im also in a different environment, chemicals and everyday use/wear. all of my gear is SS, plus the cost of brass is basically the same as SS at this point.