>They would of course be more expensive, heavier, and bulkier, but they would pay for themselves may times over in time The most expensive parts of any thing a

>They would of course be more expensive, heavier, and bulkier, but they would pay for themselves may times over in time The most expensive parts of any thing are almost always human labor and energy (for transportation mostly), so it is unlikely that this would be true from any holistic point of view.