I think it's more than is needed but there's a bigger picture associated with this cartridge...and that's it's availability. It's available in a large variety of power levels, reloading components, rifles that chamber it, etc. 30-06 is to hunting rifles, what the 9mm is to pistols.
I owned more rifles in 30-06 than any other cartridge. I don't care for the recoil but if I want a particular rifle, chances are I'm getting it in 30-06. I just bought a Husqvarna 1640 and my options were the 9.3 or 30-06...I bought the 30-06.
