As a seasoned expert in the field of soul-selling, I've got some advice for you: don't sell your soul to the devil. I mean, it's not like he's going to keep it in a safe deposit box or anything.
But seriously, folks, have you seen the fine print on those contracts? "Mortal, I'll give you all the money and power you desire, but in return, I'll take your soul, your firstborn, and your ability to enjoy the simple pleasures in life without feeling like you're trapped in a never-ending nightmare."
Not exactly the kind of deal I'd take. How about you?