It may be a poor deal on the buying end. But that does not make it a scam. Actual fraud is a required element for something to be a scam.
Where is the fraud in this deal?
I have to agree. There is no fraud involved in offering to sell a mini-rig for a ludicrous price.
Then you'd agree that Multi-Level Marketing is completely legitimate for that very same reason.
Right? Everyone wins in an MLM!

MLMs require that more people enter the system for all to benefit. Most MLMs make money selling to their sales people instead of end users.
If the MLM does not have a minimum purchase amount to become a re-seller, then it is not "scammy".
Here, the mini-rig is a well defined item in terms of capabilities. Simple maths can give you an estimate of it's earning potential.
If you still choose to pay an exorbitant price to be the owner of a mini-rig, that is not a scam. It is merely a bad decision.
A fraud would require the seller to misrepresent the item in some way. Other than price, power draw, and hashing capability, there is little to describe about the product. If the buyer cannot do the math, that really is not the sellers fault.
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