I'm not a collector but do have a small unintentional collection. Have been cleaning and lubing and sharpening them the past few evenings and noticed that all my knives are USA made. That wasn't intentional but a lifetime of carrying Case and Buck and Queen and Leatherman ended up that way. One small SAK is the exception. I've tried a few Kershaws and Gerbers and CRKTs because I liked the look but they always get given away. I guess my only rule is USA made. What about you?