I'm sure there's some MBA-speak that explains it, like keep supply low on halo vehicles to make the overall GM brand seem appealing. But the end result has been that I've owned one GM car about 30 years ago (Geo Prizm), and only because my parents worked for GM and got a substantial discount. Since then, I've just kind of given up on them. Even if they make something I like, they won't make enough of them.