Can't seem to stop buying knives. Everytime I buy some I say that's enough ! Then I see others and get the itch again. What is this......an addiction? What do you guys do to stop.....or at least slow down ?
It definitely can be an addiction.
If you generally have an addictive personality, it can get to be a problem.
For some it's just an addiction to knives, for others it can get combined with an addiction to spending.
I'm a bit a of a combination of both.
Years ago when I was on a VERY tight budget I discovered I had a physical need to spend. Didn't matter if it was expensive or cheap, I NEEDED to buy something. Took up calligraphy because the pens and supplies were cheap and satisfied the addiction.
Slowing down? Can be hard to do. Coming here and asking is sort of like going to a bar to ask about a problem with drinking.

Possibly be more discriminating in your purchases and don't rush to buy. ENJOY the learning and research before the purchase and spend more time enjoying the knife after the purchase rather than just rushing to make the next one.
Embrace and enjoy the social aspects of the hobby....chat with and/or meet others with like interests. When you get to know more about knives, and know other knife people, things like the Blade Show can be an enormous amount of fun without buying a single thing.
On the plus side, as addictions go it's at least not a terribly destructive one (like drugs or alcohol).
I swore I would never use the Visa to purchase things I don't have money for until I got this addiction to knives. I can't seem to stop either, and the sad part is the more research you do it seems that the price of the "next knife" goes up and up and up.
Buying anything on credit you don't NEED, is something you really want to avoid. It can dig you into a deep hole very fast and sour you on what can be an enjoyable hobby.
Searching for good deals can be part of the fun and save tons of money. Also, the lower end knives have a lot of treasures...check out Kershaws for example.