Have had and still have a .30-06 since 14 years old. It's boringly versatile. Had a .280 and was satisfied except I didn't reload, this along with factory ammo difficult to find in my area so I sold it.
It's the only rifle I've sold for this reason and the only rifle that a guy was lived pissed at me for doing so, we never spoke again after he let everyone on the net know!
It's amazing how entrenched people can get over their favored caliber, maybe even worse than politics.