Benchmade's Gold Class are very limited production, essentially handmade, with exotic materials and finishes and a higher standard of finish overall, all of which add to the cost. What you are getting is the equivalent of a custom or benchmade knife. Few of the Gold class actually get used, most are purchased by collectors who appreciate the artistic nature of these knives. The premium you pay is a reflection of all that.

The RSK Mk1 in CPM M4 is an entirely different animal. They are meant to be users, though some will certainly collect them. The limited run helps with that, for sure, however primarily it's designed to match up with the anticipated market. Most folks don't want a knife they have to care for, nor may they appreciate the advantages that CPM M4 provides. The premium over the same knife in CPM S30V is directly proportional to the added cost of producing the knife with CPM M4 and the premium DLC coating, itself a not inexpensive addition. The number produced is a reflection of the economic sweet spot for a limited run using these materials and finish at this point in time. Thus we are able to offer these at a reasonable price, keeping with my goal of good value. Finally, this is a knife I wanted to do, because of my own desires, so we worked to make it a reality and share it with those who appreciate it.

Hope this answers your question.