> The recent (~ 10 years) era has also made lots of folks think of photography as fast-moving, because pro-level digital happened and then improved SO FAST that

> The recent (~ 10 years) era has also made lots of folks think of photography as fast-moving, because pro-level digital happened and then improved SO FAST that there was an upgrade treadmill where none really existed before. By ten years ago the most dramatic gains had already been had. Nikon D3S (2009!) still sells for $1,000+ where I live (Japan). To me that is way past "obsolete curiosity" pricing, and more in the zone of "I can still use this for work". It was only last year that Nikon released a camera approaching double the resolution of the D3 (12MP), the D850 (45MP).