So if McDonald's just gave away steak dinners, they'd make more money?
Note: analogies work as argumentation only when they actually parallel the situation actually under discussion. Otherwise they are just hot air.
Apple's iTunes music store's business model is NOTHING like McDonalds', and for that matter, McDonalds isn't giving away anything.
A truer analogy would be "So if some kids down the block give away cold burgers for free, provided you want to climb up the tree to the kids' 'burger joint' to get them, you think that's going to hurt McDonalds' profits?"