Some have been more reasonable than others in cost over the years.
Don't get me wrong, I get the higher tag for a Gold Class piece. They are usually outstanding works of production knife art! However, lets take a more relative look.
The 485-151 has a $1200 MSRP, full Damascus, 3.75 ounce mass, 160 piece run
The 930-92 had a $1200 MSRP, full Damascus, 5.30 ounce mass, 200 piece run
The 757-151 had a $1300 MSRP, carbon fiber/Damascus, 6.62 ounce mass, 100 piece run
I threw the Vicar in there Just to make things interesting. For this purpose I'm going to look at BM's limited series (not the unlimited limited series ala the new 908-161). Now we all know that each GC piece has its unique design elements, hand input, special R&D, tooling, materials acquisition, artist consulting, etc. However, that fact remains that you're paying a premium for an artistically assembled, joined-up bit of high end materials with a sharp edge. Why is it the Vicar has 77% more material yet an MSRP that is only 8% higher with 60 less pieces being run?
So, lets establish a rough "Value Factor" equation. [(MSRP / Mass) x Run#] = Value Factor. The lower the result, the more of a value the knife becomes.
485-151 has a "Value Factor" of 51200
930-92 has a "Value Factor" of 45283
757-151 as a "Value Factor" of 19637
Naturally the closer to "1" the Value Factor is, the more of a real value the knife becomes. To justify the cost of a GC piece (in my mind) the ratio between the cost of materials, amount of material, and the limited run have to make sense. Sense to me a becomes a Value Factor of around 45000 +/-.
But then again, with knife purchases, monetary/artistic/sentimental value are all relative
