I have a 4" gp100 and I love it. I dont think you'll be able to wear yours out. Unless you can afford alot of buffalo bore ammo i guess. Still doubt it though. You'll be happy with it im sure.
I happened to go with the stainless GP100 simply because that was what was available. But that Blued GP100 sure looks cool. You are going to love the revolver, believe me.
After several thousand rounds my GP100 is better than new.