Excellent question. Short answer: demand exceeds capacity. Each knife is individually hand-crafted. This takes quite awhile and they just don't take any shortcuts in their knifemaking process. The old man, Bo Randall, was a fanatic about quality and I truly believe that same spirit remains in their operation today.
I think they have an interesting history. Randall Made has always been a small, family-owned business. They really began to be noticed during WWII and the demand for their blades from soldiers, sailors/marines, airmen just took off. So....over the years demand has just grown to point where today it takes them 4 to 5 years to fulfill a custom order. The line to get one of these knives is simply that long.