I think many have overlooked the point here - of course the $10 knife is going to perform, afterall it's still made of metal and competently made. The real question is for how long? Edge retention and toughness are importent for knives used in the field because it could well be only tool you have until you get back to civilization. How long before the knife goes dull, will it snap, chip or bend? Will the handle crack or come loose? Can you hammer on the spine of the blade without the edge curling over? How resistent is the blade from getting little dinks or nicks in it? Most of these tasks any knife will be just fine but do it over a period of time with intense work and you'll separate the wheat from the chaff.