I have thought about owning one but it wouldn't fulfill any niche for me that my Marlin 336 in .35 remington doesn't.
If I needed a rifle for brown bear country I might be more into the .45-70 as it can move a bullet weighing 100 grains more at the same velocities as the .35 remington. Might be a good option for elk or moose but we do not have those here.
I would trust myself to take a black bear with the .35 remington. The only other game I go after with it is whitetail deer and it is more than capable there.
If you think you have enough of a use for one, get it. Personally I just don't need one.