Allen, I have to agree with Biting on this. You are approaching an enlighten state that you are lucky to experience. Have a screw drive or two has saved my butt on several occasion when I was able to fix something far from home. A buggered up fishing reel out on a boat in the Florida straits, a conked out motorscooter on a dirt road in the middle of nowhere, and many more occasions where a simple tool made all the difference in the world.
Allen, look at me, this is serious; A knife with only one blade is a one trick pony. All it can do is cut. Thats it. It can't open that can for you, it can't take apart the gunned up fishing reel to unguent on some deserted lake shore or out on a boat. It can't fix anything mechanical that you have to undo screw to take off a housing to get into something to finagle and screw with into get it working again. it won't cut and Make a new spring form a paper clip like a multitool can. It won't adjust the sights on the new S&W revolver. It won't be of nay use replacing the coolest hose on the parking lot outside an Autozone car parts place. It won't take apart the cloths dryer door to replace the broken spring latch in it. Most of all, it won't do most of the things a multitool can do when life throws a curve at you and you need to fix something and your not at home with a whole tool box at your disposal.
I've been a knife nut most of my life, but in a subdued way. I started off with a boy scout knife dad gave me at age 12. In the army I used the issue Camillus 'demo' knife that was nothing but a all steel Boy Scout knife. Then I discovered SAK's. I've had big SAK's, little SAK's and medium size SAK's, and fixed a lot of stuff with them. I had traditional pocket knives like stockman, peanut, jack, and they came and went. But I ALWAYS had a SAK on hand. Then about 5 years ago someone gave me a Leatherman squirt. My world changed.
Now I had small pliers to grip stuff that my senior citizen fingers couldn't anymore. More importably, I could now hold that nut on the back that I was turning a screw into. For the past 5 years now I've teamed up the squirt with a small SAK and so far its been great. I don't carry a dedicated knife anymore at all. Just SAK and small Leatheman. Just too damm handy to have some basic tools along.
To borrow. phrase from a Bogy movie; "Knife?, we don't need no steenkin knife?"
Okay, I changed it a bit. But the point remains. Here we are in the 21st century, and the odds are we won't be skinning any buffalo anytime soon. I don't think we'll be taking out enemy sentries, or being the mountain man after beaver pelts. But we are surrounded by a more complex life style that our grandfathers could ever imagine. Theres stuff to be fixed. And then theres the "some assembly required" thing. The entire universe is held together with number 2 Phillips screws, and theres staples to be pulled, and cans to be opened, wires to be connected and a cold brewski to opened when the job is done. Nothing beats a multitool, no matter is its a SAK or Leatherman.
All those other toys the knife magazine pushes, are all one trick ponies.
Go with the Leatherman.
But stay away from metal detectors.