John Cornelius is one of the most creative - and ripped off - men in magic. He has largely walked away from magic because of that. When smart people stop sharing WE loose out. Except for a few very close friends, most of us will now never get to benefit from his amazing ideas.
So, if you care about great magic, and if you believe that if you have a great idea - YOU should be the one to profit from it - then pick up his book.
Sometimes it's important to look at the big picture.
Brad Henderson