The first thing that got me knapping was the challenge. And I wanted some stone points that looked good and didn't cost too much. So I figured I could just knap some.
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Youtube videos really got me intrigued. I watched lots of videos before I made a serious attempt. I wanted to do everything abo in the beginning, like many newbies, so that's what I did.
Abo tools made me EXTREMELY frustrated, though. I bought some real artifacts and studied them for hours and hours. I was mystified. How did they do it? I almost gave up. Then I developed a style of indirect percussion. Aha! It works! Then I switched to copper. Then the light went on. Aha! This can be fun!
I knap because it never gets old for me. It started as a challenge and now it's therapy. And it makes me feel connected to who I am: a tool using animal.
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Edit:
PS: I still use abo techniques. Especially when I put on a demonstration for archies or collectors.