The first knife I ever had was a chinese imitation swiss-army knife, about an inch and a half long, with a blade, file and scissors. I came into it when I was five - almost eighteen years ago. Still have it.
I carried another chinese liner-lock folder (with maybe a three inch blade) during my fly-fishing days, and on my forays in Africa, but lost it during my first year at University.
I bought a stylish (or so I thought) forty dollar buck tactical folder to replace it, but quickly sold that to help me spring for a ninety-dollar Camillus Heat - the real deal, not the new Spanish version. Now THAT was about where I caught the bug. The quality, the sharpness, the edge retention, and especially the way it kicked out like a wild mustang, just blew me away. More importantly it got me thinking about the mechanics of knife construction, and has gotten me on my way to maybe making them someday. Sadly, that knife has since been lost as well, but it makes me smile to think back.
Of course, I've since moved on to bigger and better knives. I own some CRKs myself, and have been fantastically impressed by the design philosophy and craftsmanship. I know they're not for everyone, but they're definitely for me. That whole hornet's nest is a thoroughly personal journey, with every past experience contributing to future ones. I'm sure everyone has a story like this.