I did ALL ATPS too back in '98. If I remember right, it ran me about $100 for the ATP and $100 for the FE Written. Sure, you can do the self study. For me, I wanted to invest one day, do the test, and get it done. I got a 99 on the ATP and a 99 on the FEW. My time is valuable to me, and I didn't want to spend a bunch of it pouring through the Gleim book.