Well, Joe, I have to confess to owning a nickled Erfurt. I like it, but I'm not hot to have any more. My other Lugers are "normal."
I also am partial to factory nickled S&W revolvers, though I only own one and that is an aftermarket item which, along with a calibrer conversion, ruined the collectibility of a WWI Triple Lock, regretably. The Erfurt looks pretty good under the plating, I think. It's a shame, but folks way back when didn't know we were going to pay such big bucks for them these days. I'm sure they were convinced it was a good thing and enhanced their value.