I was talking with a friend today who happened to have several very nice guns which were stainless. Just as a reminder to everyone, stainless can still rust. It is more resistant to the elements, but it is possible. Go ahead and wipe your stainless guns down when you are finished with them. This will protect your investment from dreaded rust.
One other pitfall to remember. If you are having a 1911 built by your favorite smith, make sure you don’t buy stainless. You run a very high chance that the rails will gall while they are being fit, or while shooting. Either way you will end up with a gun that doesn’t have a good fit. Go with carbon steel when the slide and frame will be fit to match tolerances.