I can see the WDG (yes, thats what I will call it because WD confuses me and makes me think of the WeinerDog <img src="/ubbthreads/images/graemlins/smile.gif" alt="" /> ) not being a knife for every one. I find it a little too thick for my personal use, but its definitely a solid knife that will take a lot of work without complaining.
Also remember you not only pay for the magical pixie blood quenched INFI, but also the guarantee that if you ever have a problem with the knife, you will be taken care of. That alone is worth a lot of money.
How many cheap tools or knives (or shoes or cars, etc.) have you bought and broken, only to have to replace them with another cheap one that then broke, until you've spent the $200 anyway?
Some things are just worth what you pay, I always had cheap sunglasses, they would break, scratch, warp, fog up, and over time I spent hundreds of $$ on cheap sunglasses. I finally broke down and bought a really good pair, that I still have today almost 10 years later. They probably cost me half of what I would have spent on cheap sunglasses in the same amount of time. I had the same experience with shoes.