Is that what you do, Isaac?
My modest SLT-A35 - with battery, modest fixed-length 35mm or 85mm, and lens hood - only weighs 24oz. I carry that camera in-hand for 5 or 6 hours without tiredness.
Even with camera in-hand, I seem to have less difficulty with "the joy of being there" versus "looking for pictures" than a couple of years ago. I seem able to choose being there, without regret.
Intermittently I will see something and engage in an episode of Taking the Photograph
, but that feels less like an interruption and more like an addition. It's just that I'm starting to handle that camera, and those lenses, and that mini-tripod and tape and remote, and... more fluently ;-)