Nickel was valued for it's corrosion resistance back in the day. It kept better with less maintenance. Today, I suspect it's more valued for it's looks.
I've owned a couple of nickel guns, but I didn't keep them long. I've just never warmed up to them. Nothing wrong with them, I just like blue better.
A nickel gun will bring a higher price, but on the other side, it might be a little harder to find the buyer who wants a nickel gun.
For God so loved the world, that He gave His only begotten Son, that whoever believes in Him should not perish, but have everlasting life.
John 3:16 (NKJV)