Um No. They don't. And now I see the problem: we're talking about 2 different things.
Per unit sale profit = How much the console is sold for as opposed to how much all the parts/cost of it to make. The difference equals the profit.
Sony and Microsoft lose money. Ninten-Don't.
Every single console Nintendo puts out loses zip per each unit sold. How much that console goes on to sell in the end is irrelevant to that fact. because in the end, they still don't lose any money from each unit sold.
Nintendo always makes money on their hardware unlike everyone else. That's why I keep saying Sony AND Microsoft will never recoup their loss on hardware i.e. their consoles will never be "profitable". Nintendo makes money with every unit sold because they sell their consoles for more than they cost to manufacture.
Hopefully this clears things up.