I use late era EOS bodies, because I have EF series lenses from my digital cameras.

On the longer lenses, the vibration reduction comes in handy at times. I seldom use the cameras in full auto, but that can be handy as well.

I do have a selection of older fully manual cameras, that I enjoy as well. The only drawback for them, is the quick grab shot is much mor difficult.

My ancient Aires is a kick, because the images come out looking like they were captured 50 years ago. I've been all through it. It is clean, and accurate. It was just born before a lot of the advances in lenses came about, and it was not a premium piece of equipment in the first place.