Phones also encompass/replace/compete with many of the goods that used to be sold in retail shops and and mall locations: books, magazines, music, movies/videos

Phones also encompass/replace/compete with many of the goods that used to be sold in retail shops and and mall locations: books, magazines, music, movies/videos (and movie tickets), toys, games, video game systems, cameras, audio and video recorders, GPS systems, fitness trackers, notebooks and personal planners, greeting cards and stationery, desktop/laptop computers, etc.. Note that the only arcade machines that survive are prize machines that can't be replicated on a phone (although phones have gambling games of their own with virtual prizes.) Phones also compete for time and attention vs. all other activities.