I posted this in another thread: "I've realized that impulsive buys below a certain price threshold are fun to try new knives, and if they don't work out, who cares. Impulsive buys above that price point are a lot more painful because I fret about the loss on a resale. So, if it feels impulsive above (for me, about $150), then I need to do more research before buying." I have a few knives in the $400 - $800 range, and carry a Shiro (top end of that range) daily. I recently bought a Medford on impulse - what a stupid decision! That one really irritated me because I realized when I bought it that this impulse was going to be as bad as all others combined. What is your "impulse" threshold? There a good number of threads out there about your upper threshold, but at what point do you start to think more?