I think with me, it's a mixture between being an admirer of simpler times, and sheer practicality.
Of course, since most of you have read the stories I write, you know on one level I am a hopeless romantic. Growing up reading Louis LaAmore and Raymond Chandler novels, and having lived in two different worlds of the Maryland Eastern shore and Washington D.C. I got to know first hand some interesting people. They were a huge influence on how I grew up thinking and doing things.
Then theres the sheer practical. Growing up carrying pocket knives with multiple blades, I got spoiled. When the Buck knife craze hit, I was probably the only man on the planet that looked att he Buck 110 with disbelief. Why in the good lords name would anyone want to carry a large heavy knife that weighted what a small boat anchor did, with only one single blade to boot?

To my way of thinking, and those men of the liars circle that were outlaw heroes to me, not to mention Mr. Van who was a living god to the boys of the scout troop, a proper pocket knife had at least two blades or three, unless it was a scout knife, then it had four. And SAK's bring a whole bunch of sheet practicality into the picture with addd tools that really work at their intended task.
So with maybe a 50/50 mixture of romantic memories of past (and maybe better?) times, with the other 50% being as much utility that could packed into a small pocket sized bundle, my love of the traditional pocket knife like Bill Harding, Mr. Van. my dad all carried is what my choice is. To me the modern knife with it's fast one hand opening, and blade locks that can supper the weight of an Brinks armored car, is more sales gimmick than practical real world pocket knife. In my whole life I have never been in a quick draw situation with my pocket knife, nor had to pry up the hatch of a enemy tank. My knife is a cutting tool, that's all I need from it.
Hey, I'm old and stuck in the past, so that's my story. I'm traditional all the way.