Why would anyone buy a $9,000 camera that is inferior in almost every regard to most DSLRs? It can’t take a large variety of lenses. It’ doesn’t fire as many frames per second. It has no scene modes. It’s not the best low-light camera. It’s not very good at shooting sports photography or macro work and the list goes on and on.
And yet the Leica M9 is considered one of the best cameras (digital or film) ever made.