I guess i should add to my original post, having done some more thinking about the topic.
I do own knives that are, if not truly flawelss, close enough where i can still think of them as being perfect. I own a beautiful Dake D/A pearl and damascus folder, and i can find no flaw in the workmanship, the only flaw, if you even want to call it a flaw, is a small inclusion in the pearl, but of course, thats not a defect in fit or finish, its a natural part of the pearl, and the pearl is as nice as i have ever seen. So this knife, for me, satisfies my desire to own a perfect knife, and i guess, if i think about it, both of my Chris Reeves are pretty much flawless, i cant really detect anything wrong with either, so i guess they too are, for all intents and purposes, perfect. I have an RB Johnson that is essentially perfect too.
So, since i do have several knives that are essentially perfect, i guess when i see a knife that has a significant imperfection in F&F, it bothers me since i know that other makers can and do do better.
And yet, on the other hand i own a Pease carved pearl and engraved bolster folder, i LOVE that knife, its a beauty, but there ARE some very tiny imperfections, and yet, somehow, it doesnt seem to take much away from my overall enjoyment of the knife. I guess when all is said and done, what Blues said is accurate. Every flaw has to be evaluated on its own merits, what the nature of the flaw is, how significant it is, and how it affects the overall knife.
So, in retrospect, i think its more accurate for me to say that while it does bother me when i notice flaws in F&F, it really depends on the exact nature of the flaw and how it affects the knife overall, Blues was right at the getgo.
So, to answer my own question, yes, i think there are knives out there that are so close to perfect that they can be thought of as having perfect F&F, and yet, there are also many knives out there with one or more flaws that because of the minor nature of the flaws are still extremely fine and beautifully made knives. And yes, there are a LOT of knives out there with flaws of a nature that would bother me and lead me to seriously question the quality of the overall knife and the dedication of the maker to putting out a quality knife. I think that the phrase or thought: "Well, its good enough and I'm not going to redo the whole thing just for that..." has been uttered/thought my many a maker, and i have seen many customs where clearly the maker knew about the flaws and decided to let the knife leave his shop with them, theres no other explanation for a custom knife being sold with one or more noticable flaws. I guess that one of the things that seperates makers is their willingness to scrap a knife or redo the knife significantly to get rid of a minor flaw. Some makers are willing to, while others are not.