Nikon recently implemented the same warranty as Vortex - the "I'm and idiot who doesn't know how to use a scope or binocular so no matter what I do they will send me a new optic". While this might sound good it costs the rest of us more money in the way of higher prices because of idiots and the me, me, me mentality. It will also hinder improvements in existing optics lines. Say Nikon improves the Monarch 3 series of scopes with better glass or 5X magnification ranges. I can literally take every Monarch 3 scope I own and smash it with a hammer, send it in and get a new one free. So what reason does Nikon have to make improvements?
