I'm studying copywriting for my own projects, and I love the field.
But I'm curious...
Products are a dime a dozen. It's your skill that makes the cash register beep, isn't it?
Wouldn't it be more profitable for you good copywriters to sell your own stuff, rather than help others with good copy?
Do you just love the art and science of it, or just get a kick out of some marketer making money off of your skills?