Money isn't everything. You can't buy happiness - it isn't available in a jar at Target. Both CRNA/AA and physician avenues will allow you to have an enjoyable lifestyle and comfortable retirement. But, again, money isn't everything and I know some unhappy (deep down inside) people with big bank accounts. I'm giving up ~$170K total package to go back to school but to me the intangibles are priceless.
What truly motivates you? From what do you reap your true inner rewards? What gives you a sense of satisfaction, a job well done, a day well spent, using your talents and abilities to their fullest possible extent? After making sure the essentials in life are covered, with a little left over for toys and fun, more and more money is really just a bunch of marks on an accounting sheet.
Without trying to throw religion down anyone's throat here, my personal goal is to stand at my Eternal Judgement and hear the words "well done." I don't see the addendum "and congrats for dying with the most toys, and with the largest bank account" in there anywhere.