Some of you on here have to respect the fact that some people are truly disappointed by the "M4" thing. M3 is a tradition, M3 is a brand, M3 is a lifestyle. People who buy these cars know the history behind it and cherish it. Why do you think rarely people with M3's do not debadge? Because that badge on the back represents the history of the brand. To switch it and theoretically kill the brand is a disrespect to some BMW enthusiast.
People who have M3 coupes represent the pure culture of BMW. the people who have M4 coupes represent the transition of the brand.