I hunt almost exclusively in grizz country. I always carry it.
Too me, it's better to have both. Some times a rifle is out of reach. Sometimes you get knocked around. Sometimes an attack doesn't present a safe shot. For these reasons, bear spray is always attached to my chest via bino harness straps. Even when carrying a 12g with slugs. Better to have it and not need it, then need it and not have it.