They have web sites that never use a sales letter anywhere. If they took their web site, printed it and mailed it out in direct mail, it would never make a dime. Very few of your competitors understand or do this. By that I mean it practically does it for you. You just follow the process, input the data and enjoy the result.
All business involves risk of gain and loss.
If you can't handle the potential for loss, don't play the game. I do everything in my power to put the odds in your favor. You may not make a dime. And you may get rich. Chances are, you'll fall somewhere between those two extremes.