I've worked as an ER nurse for 15 years. I make it a habit to ask MD's that I know whether they would become a doctor if they had to do it all over again, and the vast majority tell me, "No". Adjusted for inflation, MD's salaries haven't gone up for over 20 years, in fact, they've decreased over the past 10 years: http://www.hhnmag.com/hhnmag_app/jsp/articledisplay.jsp?dcrp...
And, if Bush's medicare cuts go through and aren't postponed, many of the good doctors are going to be leaving 12-15 years of schooling behind and looking for a different career.