You could carry a $15 Opinel for the rest of your life and be just fine....[snips].....My suggestion is to avoid a big purchase and, instead, buy a few $20 and under patterns to try out. They are easy to find used and some companies like Rough Rider will get near that price point (they don't suck, actually)....[snips].....Once you've found a basic pattern that works for you, then you can think about finding just the right version of that style of knife and you can sink big bucks into something with a lot more confidence.....
Whit301: Given your initial question, Pinnah's reply is the most on-target I've seen. Get a couple of cheap-and-cheerful knives, try 'em out to see what works and that may show it takes more than one type to meet your needs then you'll be ready to make a smart buy of a more expensive make in the pattern(s) that work for you.