Was the idea ever to distribute these "mules" for beta testing?
Each release in itself was essentially considered a "beta" test for knife steel "nerds" who wanted to compare the performance of different blade steels.
In the words of Spyderco itself:
"In the knife industry a “mule” is a sample knife used for performance testing. Spyderco’s Mule Team series takes this concept a step further by offering the same fixed-blade knife pattern in many different steel variations. This ongoing project allows steel-obsessed knife enthusiasts a unique opportunity to test and evaluate different steels using the same identical design platform.
Mule Team blades are purposely sold without handles or sheaths to make them as affordable as possible and to give our customers the freedom to finish them to suit their personal preferences.
. . .
No matter how you choose to finish your Mule Team blade, the ultimate goal of the project is to actually use your knife to evaluate the cutting performance, edge retention, corrosion resistance, and ease of sharpening of its specific steel.
. . .
Once you have used your Mule Team knife, sharpened it, and used it some more, you will have developed an informed opinion about the performance of its steel. Please don’t keep that knowledge to yourself! Instead, share your thoughts and experiences with other members of the Spyderco community."
See:
Spyderco Mule Team Project
This is why the Mules previously have been offered at such a low prices (only $50 each) and in such limited numbers BUT the interest in and demand for Mules has far surpassed Sal's original conception.
I personally was never interested in doing comparative use testing of the Mules that I purchased. I just considered buying Mules a cheap way to acquire a variety of fixed blade knives using different steels at a relatively low price.
The affordability of Mules has since changed but, if you've got 1 pair of scales and a single bolatron, kydex and/or leather sheath, you can still use/carry a wide array of Mule blades at a still relatively low price, even if you play flipper prices for the blades.
That's the problem that the Mule Team Project currently faces.
The prices are still so low ($75 for the MagnaCut) that people who are not "steel nerds" are immediately attracted to the profit potential of buying and reselling Mules, since they are being resold currently for anywhere from about 3-7x's the original release price -- that's $150-350 each,
The MagnaCut is already selling at about 3xs the release price at around $200 and, as the demand for and interest in the steel increases, that price is also likely to increase. This cuts out most (if not all) "steel nerds" from the market because who wants to "test" and/or destroy a blade that you have to pay $150-350 for?
Not me.
So, it may be time for the orginal concept of Mule Team Project to come to an end by pricing each new release "at the market" (mostly at about $150-250) and limit the number that can be purchased upon release to just 1 per account in order to reduce the profitability of flipping them.