As usual, Coop basically hit the nail on the head!
"style and quality at a glance" is the most succinct way I've heard that thought expressed.
I'd go just a bit further than "EXPERIENCE of interacting with a maker HAS to be positive" though... at least for me.
To be sure, any little "hiccup" can lessen the attraction, but there are also makers who are VERY professional but not necessarily "engaging" and while I've collected fantastic knives those makers, I'm perhaps not as "invested" as I am in those makers as I am in some others...
At the risk of naming names and perhaps unintentionally slighting others, I'll just give a few quick examples:
Jerry Fisk - possibly best known maker in "forged" community. perfect business practices. But also a guy who feels like an old friend 10 minutes after you meet him, and will answer ANY knife question you have without hesitation
Mike Quesenberry - Unbelievable fit and finish, possibly the best in the game. Perfect business practices. Not as "buddy-like as Jerry" but will speak with you in detail about any of your questions - no matter how dumb
David Lisch - super creative, super entertaining ! Perfect business practices. incredible work. Another guy who is a real friend quickly and who loves to talk knives.
an up and comer for me....actually, he's already HERE - Javier Vogt. fantastic, innovative work. Probably 5000 miles from me, but great communication and business practices. My interactions with him have all been "Virtual"....but he feels like a friend.
I could go on about even more makers who's work I've collected, but no one wants to read all that
I think you get the idea
Bill