The concept would be that there would be a universal handle, and the user would have the option of buying multiple blades[...]
Hi; first post...
I've been struggling with a sort of "which Kershaw knife to buy as an EDC-folder"-text for about a week now (trying to not make it sound too much like a ZDP/Ti-Leek-weaknesses-related tantrum

); and when I read this post of yours I didn't so much think about the way I want to be able to buy a knife "in parts", as the way I want to be able to chose among/buy a single knife.
Instead of scrolling through several pages of knives (or searching, or picking a feature and then scroll etc), like I've done these past 1-2 weeks, I want a more web2.0-type of page; one that allows me to have columns/lists where I in its most basic form would first chose product name, then I at the next column/list get available options of handles and then a list of type of blades.
(In practice there'd of course be more options, like picking material of handle and then color, or the steel of the blade and then coating and then shape etc.)
This way it'd be easier for me, the potential buyer, to quickly find out what is available; but it'd also allow for a custom build-option, where you as a buyer could get more options and then pay extra for a combination currently not available as a standard model.
Yeah, I know, initially the custom build-option sounds like a nightmare as more and more people want something unique, meaning that it'd take forever to put all these knives together; but you balance the workload by adjusting prices and the extra time the customer would have to wait before he'll get his unique knife.
For the experienced user it might be, at least initially, both cheaper and quicker to buy two knives and exchange parts, but having these extra options you'd get feedback allowing you to change your line-up based on what people actually buy.
Not to mention that something like a limited edition-knife wouldn't have to result in, or be preceded by, as many post like "I wish it'd been with a..." - as you could release a new blade or handle and let the customer pick what to combine it with.
You could of course also hand out codes to the most loyal buyers/forumusers allowing them to get even more options, like only 10 people being able to buy one knife each with a brand new blade, as a field-test a month before you get a full batch of them; or a commemorative-knife/handle without the headache of what blade to use etc.
Just a few ideas (there's of course stuff missing, like how you standardize the way pictures are taken of your products, to allow this webpage/orderform to show pictures of any combinations, no matter if you've actually put one together yet or not etc).
Now I'll go back to being quiet again, sitting here all alone complaining about why I can't get something like... oh, I dunno... a plain edge-tanto-13C26/ZDP-189-Leek with Ti-handle and my name engraved in gold...
