It's a hard call for me - I've ran through probably 25 custom folders in the past year between buying, selling and trading for new ones.
The most notable ones being -
Rj Martin Q36, Laconico Blast 2 framelock/cf . Both of which I regrettably sold to fund other knives. I also discovered Shirogorov earlier this year, and all I can say is Wow. They make a hell of a mid tech and I'm really sorry I didn't get into them a long time ago. I'll probably always have at least one in my collection. I was fortunate enough to score a 0454 and that is also an incredible knife all around.
As far as the title, "find of the year" monetary wise, I was able to score a Dustin Turpin Logic flipper for a price well below the inflated secondary market value. It should have showed up Monday, and I thought the USPS lost it for a little while, but tracking today just got updated after 6 days. Really excited because I've always been a fan of Dustin's work,