I'm not worried about rocking the boat. I'll be honest and polite.
I'm a fan of high performance, designs practical for the intended use and high value. This means I tend to gravitate towards knives which offer those things in spades, and tend to ignore those which do not. One without the others (as I perceive it, as per my own opinions) is of no interest to me. I tend to ignore Quartermaster, Rockstead, Mantis, Chris Reeve, SOG, Emerson, Gerber, Strider and most of what Benchmade produces (though I do have a special place in my little black heart for the Griptilian and I think the Adamas blades are awesome) because of this. I don't mind paying a pretty penny, but I want my money's worth, and if I don't feel I'm getting it, I'm not interested. I'm also not interested in pocket jewellery, though I do love a knife with top notch performance (in the role I perceive it as being made for) and good looks.
Some specific features that, generally speaking, will keep me from buying a knife:
-gaudy designs
-fake hamons
-"speed holes"
-swedges on tanto points
-poor ergonomics, handles I can't get a good grip on
-blade steel that won't hold an edge as long as AUS8A or is too difficult to sharpen for an idiot like me
-liner or frame locks on knives advertised as "hard use"
-compound grinds
-chisel grinds
-poor sheaths or no sheaths for fixed blades (I prefer to not have to go out of my way and have a custom sheath made, though one day I'd like to make an exception for a Mule Team)
-maker with poor character
-blunt tips
I also refuse to buy from a maker that will only sell certain products to government (except when this is required by law).
Just one enthusiast's entirely subjective opinion.