Gone both ways, from the cockpit to the wrench, and wrench to cockpit, and a lot of time spent doing both.  More money to start?  You're kidding, right?
 
Do a little more research.  I'm not saying you wouldn't enjoy it, or that you couldn't make a living at it...just not a good one.
 
Thirteen to twenty four months of school makes you...an entry level mechanic, able to earn entry level wages.