I used to have the same beef with Photoshop when I worked in broadcast (this was LONG ago). Then we went non-linear and I feel in love with PS. I can’t imagine video without it. It’s not an unfair assumption, that if you have a $1100 program like AE, that you’ve got Photoshop (or elements) too.
Then I didn’t care to include Illustrator. But as my AE skills slowly improve, slightly faster than the growth rate of my fingernails, I’ve come around. I purchased Illustrator last night.
One other thing to consider (before you go buy Photoshop, please!) is that many of these tutorials were written prior to AE6. It’s changed a lot since version 5, most notably in the text tool. I’ve seen plenty of tutorials where you basically have to take your own liberties to skip steps that have become unnecessary with recent versions of After Effects.
Clint
(I heart Photoshop)