If I define high-end simply as the jump from garbage gas station and big-store knives, it was a Benchmade 720.
After a China knife lock failed on me, cutting 3 fingers pretty well in the process, I decided a better lock was needed. I happened upon the 720 at a shooting range and at this point had never heard of Benchmade but the Axis lock looked pretty secure, and at $75, I went for it....the most I'd spent on a knife up to that point, but I figured it was well worth it.
The butterfly on an otherwise badass blade looked a little weird, but I quickly learned to love it.
That knife was my EDC for over 4 years and it never failed me. Surprisingly tough blade....I'd love to get another one, now that I'm thinking about it.
Ive spent much more and have gone "higher end" since then, but that Benchade is what taught me what a quality blade is, what to expect of one, and ultimately introduced me to a hobby and community that I'm grateful to have in my life
Edit: I realize that $75 is way lower than retail price at the time. One thing that excited me as a still immature 18 year old was that when I got home with the knife and took a better look at it, I saw a very faded "1" in front of the "75" - all I could assume was that the person ringing it up didn't see it and acciddentaly gave me a $100 discount! There's no way I could have afforded it at $175, and I imagine were it not for the mistake I may have never moved into the world of quality knives. I'm sorry to say I did not return to pay the difference in price as I'd like to think I would these days
