Discernable print differences.

I just finished rereading an article...https://luminous-landscape.com …hrough-print-performance/
in which Keith Cooper laments that non-photographer folks who are shown prints from a Canon 1Ds3
and a 5Ds are unable to discern any differences.

To those that have upgraded to any of the high MP bodies, be it Sony/Canon/Nikon, agree with that?

Hmm, he only printed up to 29x19", or ~74x48cm, which isn't that big... one needs to print 40x30" and bigger for it to really matter.

Of course it's also easier to edit/work on finer detail without it being obvious that something was shopped, and you also get crop estate.

Once you're any reasonable distance from the print it probably makes little difference. I have a 50" print from a slightly cropped 5D Mk1 photo that looks great.