[imjk]

While you're not wrong, I don't think all (maybe any?) of these are examples of specifically targeted markets taken over by the companies you mentioned. Apple probably didn't target the flashlight market and decide to take market share from Maglite. I think you've just identified products that have naturally been supplanted by new technologies, many of them falling to the adoption of smartphones. A more appropriate example may be Amazon moving into the groceries market. But even that, one could perhaps argue that their broad market is general retail, with competitors like Walmart and Costco, in which case it wasn't really that far of an extension at all from their natural market. I guess Amazon and Apple moving into the realm of Hollywood and film studios may be a better example. I'd like to see a broader success like Apple taking market share from Automobile manufacturers, etc.