>>2859810Canon lost a lot of the market share during the Vietnam War to Nikon which is why Nikon is thing. Canon regained a huge amount of that market share back when they released the first competent digital cameras and some seriously nice telephotos. Since it was a hard switch to the EF mount people had to invest into the system and people are reluctant divest to jump ship to another brand. They've also been around forever giving them a strong sense of stability. Sure the Sony whatever is a great camera but it would cost a fortune to switch it. The Nikon 810 is also pretty incredible but again, the cost switch is high. Camera bodies only stay relevant for so long but lenses stick around for quite awhile. Much to contrary of the internet the Canon bodies out there right now are quite good (this is less true for affordable video) and there is faith that Canon (and Nikon) will continue to make great cameras.
TL;DR Canon made the first good and accessible digital cameras and people are reluctant to switch to something else.
