I think that there are a few watches that make people want to invest in a gen, and some don't. It's different for everyone. For me, I would like to own a Lange, because a) there aren't good reps made for them, and they were the first company to do fair labor practices for their employees. Put that together with their beautifully decorated movements, and that makes me want a gen. But if I had a very good rep, especially from a company that overprices their product (Panerai), then I would never need the gen.