My only problem with nickel is the tendency to collect a lot of what I call "micro-scratches." The beautiful thing about an as-new nickel gun is the truly mirror-like finish, at least on the Smiths that I favor. But, without careful handling, over time, they seem to develop a less-than-mirror-smooth aspect. Not big scratches, which can happen to any gun, but a lot of little tiny micro-scratches so that over time, the finish becomes less than mirror-bright and smooth. This occurs with blued guns too, but the effect isn't so noticeable as it is with nickel.
I guess the cure is careful handling, a good nickel polish, and Renwax. All of that said, the prettiest nickel gun I have ever seen was a 4-inch post-war Heavy Duty, which Philippines mother of pearl grips, that I am sorry I let go of to another Forum member:
When nickel is perfect, it's tough to beat for sheer beauty on a revolver.
Bullseye