If I buy a high end custom there are some things I look for.
1) Resale . Will it keep it's value if I resell it? Not usually unless it's from a well known and recognized maker. I know what materials cost and have made a couple knives and from what I've seen most knife smiths don't pay themselves very much per hour. I can get a lot for the money so if I pay a lot it needs to be something that is well recognized and in demand in case I need to sell. There are waiting lists for all the makers I'd buy from
2) It has to give me something I can't get from a production knife. No 440C or even S30V now. Maybe not even S90V now because I can get a Spyderco for less than $100 with S90V and excellent performance. If it's 10V I want it run at rc 63-64. If It's O-1 I want rc 60-61. Heck, how about a 52100 or O-1 lockback at rc 61-62. No one makes that so I might be inclined to spend for what I want.
I actually want more than just a harder blade in fact. I'd like to have some say about the heat treat parameters if I'm getting spendy. How about PD#1 or Z wear at rc 63 in a folder?
Don't try to sell me a steel that's convienent to you by saying something like "440C was
THE "super steel" in the 60's and 70's and still outperforms steels that are more expensive". If you want to use 440C that's fine, and there are reasons to do that but don't tell me fibs to convince me why. If I can't agree with your reasons and you aren't comfortable with my requirements than it's better for both of us not to put a round peg in a square hole.
The bitterest truth is better than the sweetest lie as the saying sort of goes. Also, be aware that a certain amount of your customers aren't happy with anything less than CNC precision and grew up with perfectly molded plastic parts and expect to see the grinds and alignment more than eye perfect. On the forums we sometimes see guys that are raging over imperfections on the inside scales that need light and magnification to show the other forumites and even though it doesn't effect performance or value they will make overly dramatic statements about how they had the worst day they have ever had in their lives because when they found the flaws in their knives and tried calling you they couldn't get you on the phone and furthermore you didn't respond to their e-mail for 2days by which time they have broadcast their meltdown on 3 different knife forums and because they can never trust you again they have notified their credit card company etc...
Fortunately not everybody is like that but expect to find a few that are. Some folks are used to instant gratification and are very special, fragile snowflakes who have not learned problem solving techniques and go straight from one e mail to runaway, duck and cover
mutual
Assured
Destruction nuclear option.
Good luck.
Joe