I just got done slashing my finger to the bone eating an apple with my Nowland Saddlehorn so forgive me if I drift, but I too have gone full circle.... at least twice.
I have always had a selection of fixed blades so what I'm saying here mainly pertains to folders.
For years I carried slipjoints only, and had a few lockbacks I would occasionally carry in a belt sheath. When I was 13 my friends parents had a hard time understanding why I would carry a "big knife" in a belt sheath, I pretty much stopped so I didn't have to listen to them.
On to college, still mainly slip joints but bigger ones. I also got a few Spyderco's. Primarily a large Buck Stockman.
After college the BM705 came out and I thought that was the bees knees, I carried that sucker for a long time.
Then one day I decided I wanted something different and stumbled on to Bladeforums in my quest, it was all down hill from there
I went from mid-range production tacticals, to high end production tacticals, to custom tacticals ranging the full spectrum. I went through a phase where I thought 3" was my perfect size, then 4", then anything bigger than 4". During this phase of evoltuion I saw little need for the small stuff.
Tacticals were mainly the order of the day and I bounced back and forth between favorite locks types and steel.
One day the process of "sewing my oats" brought a startling revelation, all of these big tacticals were great for the wow factor, beautiful to look at and would be nice in the rare event I needed to defend myself with one, but they could not cut for poo. That was about the same time that I realized I hated liner locks....
So, the process of revamping the collection went through another phase.
Now for the most part I carry a slip joint every day in my left front pocket (usually a beautiful custom like the one I just about de-tipped my finger with today), a lock-back, Axis lock or frame lock (although I only have one of these anymore because I decided I really don't like frame locks either, but that's a whole nother story) of choice either clipped to my pocket or in a belt sheath if it's one of my many 110's.
So for me it's efficient cutting big knives with blades in the 4" range and a nice traditional slip joint. In day-to-day use the slipjoint sees 95% of the action and I'm getting to the point where some days I don't even carry a bigger knife to the office.
I'm sure a good shrink could tear me apart but hey, it's what makes life interesting. My wife and I already have established that I have OCD when it comes to hobbies and things I'm passionate about but that's why she married me.
At last count I had conducted over 350 buy/sell/trade transactions on this and other forums with knives ranging from $10 to $750, I think I've finally got what I like down pat and am happy with life