Yes, I'm aware it's not the unique source of income. I already said that diversifying makes sense, when it works. Right now we have no good hardware and no "meaningful" mining, so "not being dumb" isn't working out that well.
It already worked out well. They already made the money, and more than they could have made mining with it.
Are you trying to say that if they didn't sell hardware they would have made more money by this point of time by mining with that hardware? Because that statement would be completely false. If you are trying to imply that it's true, you need to provide some math.