i have a few acquaintances who do it/have done it.
I'm not saying it's bad or good, it's all a matter of what your priorities are. As 0ptions said, the hours are crazy, and so is the pay.
You will get paid a lot, but you'll also sacrifice your free time for it. So if its worth it to you, go for it. My opinion is to go for it if it interests you and you have a passion for it, and then get out after a few years when you can move up. Good luck man! Make that paper!