The mysterious sales numbers of Commodore computers

And yet, from our collective memories, we all believe there was some sort of Commodore product in nearly half of US households that owned a home computer, not to mention sales worldwide. The "other people" had various Atari computers or green monochrome Apple II or II+, Tandy or, ultimately DOS Frankensteins. We'll be nice and not mention the sad Coleco Adam, since most everyone has forgotten this lonely child. But are our memories real? Was what we saw around us true, or were we living in a bubble?I played games on a C64 when I was very young, but I don't think I've ever seen a real Amiga (aside from this stuff).