where do you know how Trevor calculated price for X1000? I think he calculated development cost in the price otherwise X1000 would have been much cheaper. Yes the obscure processor became much more expensive propably caused by the sudden need and him not negotiating fixed prices for it. As I understand his ideas he is prefinancing projects and then trying to get back the money from customers. i do not know how much profit X1000 finally generated but assuming that he calculates high losses when starting a project is not realistic.
In business you calculate the price by making a sum of costs, adding profit and then dividing it with calculated sales, I do not think that Trevor D. did it different. Of course there was chaos when processor price rose considerably. I do not know if there was any profit then left.