Don't collect them but they are great. Have had many folders, given many as gifts and restored a few. Sent a 40+ year old hunter back and buck buffed it out and returned it razor sharp
I had found it in a bucket of bolts covered in drywall mud. It was my wife's grandfather's who had been a POW in the Bataan Death March.
I presented to one of his great grandsons with a few words of wisdom.
Bottom line, great knives from a stand up company (US made line).