Interesting thread. What I've always heard is a good photographer can make a good image with whatever camera they have handy.
I've gotten mostly positive reactions when I break out the older cameras. In some ways it's like classic cars....part of the fun is when others enjoy seeing the old gear
I do believe it is the tool for the job. If I want to be 100% sure I'm going to capture something I'll bring the digital since I can seen on the spot that I've got something. I'd also bring the Big film camera to hopefully get the image quality you can only get from MF or LF film.