Well let's look at it another way. I recently handled a Blackwood custom skirmish that sold for well over 2500 dollars. I also witnessed an Obenauf sell for about </> $500. Both knives were awesome and constructed of Damascus steel, Titanium, and Micarta. Both were completely handmade and of similar dimensions. Is Blackwood's work roughly $2000 better than Obenauf?
Would you assume that Mr. Blackwood's customers are not being "good with their spending habits"?
I guarantee you that a $30 Victorinox Trekker can do many of the tasks as good or better that many of the offerings from Benchmade or Spyderco. So by your logic, shouldn't we all evaluate our "spending habits", get rid of our spydies and benchmades in shame, and pledge our allegiance to the mighty, cost effective SAK?
I am not sure anyone can sufficiently defend their purchase of a strider, or a sebbie to you. Can you defend your purchase of a $150 dollar spyderco over an $8 Opinel? I guess the answer is that we are knife lovers. Different strokes for different folks, I guess.