either Sony loses much money or MS makes much money, help me out.

[Dallinor]

I would assume both companies are generating very large amounts of profit from their online business on the consoles.

I heard a journalist in the industry remark (on GT) a while back that online servers for games are becoming "dirt cheap to run and maintain". If so, Sony running dedicated servers might not be as much of a financial burden as you'd expect.

I would also make the logical assumption that Microsoft are making a much larger profit off XBL, given that they charge a fee.