I can't speak for Zachary, and if you've been shooting a 30.06 for years and are comfortable with it then go for it! The reason I would agree with Zachary, that young shooters should shy away from it is that a 30.06 can, and will deliver a fair kick, especially to someone who is not used to recoil. It is the standard that recoil in other calibers are measured against. It's difficult to learn to shoot if you fear the recoil.....
Now, this obviously doesn't apply to you, as you know what to expect.
We're not here trying to think for you, but rather to help you think for yourself......
For a one gun hunter just starting out that already knows how to deal with the recoil there would be no better choice than a 30.06. It's a very versatile round proven to be the standard that ever other cartridge is measured against. I, as a man, wish I enjoyed the same distinction!