I personally think it would be great to have all listings organized & categorized by style, age, brand, handle material, pattern, country of manufacture,& more.
Operating under our current system, seller can only choose one category for the main AAPK store. I think it would be a mistake to add Automatic Knives as a category under these conditions because it would force a choice ... If I was listing a Microtech, for example, I would be able to put it in either the 'Automatic' category or the 'Microtech' category. I fear this would lead to a lot of problems.
Multiple categories would be necessary to do it right, but I've been hesitant to implement such a system due to a concerned that it would add too much complexity to the listing process & that some sellers will not take the time to make a selection in all categories.
I've given this a fair bit of thought over the past year or so & I've done some experimental things on my development server to find a good solution.
I'm currently entertaining the idea of attempting to program an algorithm that identifies additional categories based on key words entered in the tile, description, & other inputs provided by the seller.
I guess the bottom line is that I'm not wanting to add Automatics as a category as defined today, but I am working on ideas & solutions to enable customers to browse specific high level categories like 'Automatic / Switchblades' that should improve the AAPK customer buying experience.
Please stay tuned for further developments on the front.