Sony has lost over $3 billion on the PS3

[Maxpphire]

Are there any other businesses that do that sort of product pricing, or is the gaming industry the only one who sells a main product at a loss to make it up with additional products?

Some brands of cameras do. Like the ones you need to buy film for. They make most of their money off of the film.

Anyway if more and better games are being made for cheaper and better consoles I think I'd rather go with the better ones personally.