It's not because of ease or expense of manufacture (many times goods that are smaller are more expensive to make) it's because of the ease and efficiency of shipping. Lets say that you could cram 1500 Wiis into a trailer and ship them at once to a store, Sony and Microsoft could only cram less that 1500 into the same trailer because their product is bigger. So for Microsoft and Sony to ship 1500 of their consoles they would need to use two trailers instead of one, doubling the shipping cost.










