[al2o3cr]

For fun, reread this article with "doctor" universally replaced by "teacher", and note the similarities. Then note that the doctor is probably taking home 4-5x the cash.

There's also this: http://seattlepostglobe.org/2011/03/07/warnings-of-doctor-sh...

[Dan_Nguyen]

After 1.5x-2x the schooling, 3x-5x the apprenticeship period, and around 6x the debt.