In a free market, over time, competition in the production of a commodity product will eliminate all profits. Bread-makers can sell their bread for enough money to cover the cost of the capital invested in the bakery, the cost of the flour, yeast, sugar, and water, the fuel needed for firing, and the salary of the baker. They can earn no more money than that. If they did, then another bakery would be established which would price its products lower, splitting that profit between the customer and the owner of the new bakery.
3D computer rendering are very CPU intensive and the best way so speed up slow render problems, are usually to distribute them on to more computers. Render farms are usually very large, expensive and run using ALLOT of energy. I wanted to build something that could be put in my home, not make too much noise and run using very little energy... and be dirt cheep, big problem? :) no computer stuff cost almost nothing these days, it just a matter of finding fun stuff to play with.