You're conflating video camera and digital camera sales. It'd be great to see sales numbers for all the major manufacturers, but Canon have in the last year la

You're conflating video camera and digital camera sales. It'd be great to see sales numbers for all the major manufacturers, but Canon have in the last year launched five new cinema focused cameras (R5, R6, C70, C300 iii and C500 ii), Sony have launched three (A7sii, FX9, FX6). All of these (the ones that are currently available at least) appear - both from availability, and the frequency I see them on location - to be selling extremely well. As to your 'high end models' comment. That isn't remotely true. Arri make one camera, the Alexa 65, that isn't available for retail. Red make one line of cameras, the Red Ranger, that wasn't available but now is. They also make custom cameras for specific DOPs occasionally. But broadly speaking both manufacturers only make 'high end models' (only exception being the new Red Komodo pro-sumer crash cam), and they're all for sale (and doing extremely well).