These are indeed nice knives, especially if you keep in mind what they were designed to do: help a downed pilot survive after a crash in remote places. Even to the point of cutting his way out of the plane's fuselage, or through a canopy, using it.
This means they're largely overbuilt for most bushcraft purposes today. To which the designer would say, "So what? We built for the Air Force the knife they wanted to give out to aircrew to help keep them alive in an emergency."
The Jet Pilot Survival Knife will certainly suffice for woodcraft purposes. But anyone today heading into the woods could probably do just fine with a lighter knife, such as a Mora or a Condor, to name just two good ones in the low-price/high-quality lineup.
My point, I guess, is that it's a "usable collectible."