Change or die. When people ask me about camera brands I think about the second "Thor" movie from Marvell. The scene in which Odin asks an almost defeated Thor, (who is convinced that not having his magic hammer will lead to his defeat), "Are you the God of Hammers?"
Odin reveals that Thor's hammer is not the source of Thor's power but just a tool to help him channel that power. As photographers we get to use whatever cameras we want to channel our powers, we are not wed to our current cameras for life. Only Loki worships the brands.