Why again does Windows cost money when a more secure more advanced OS is free?
Well, this will not be the case for much longer. Instead of charging you for the OS, canonical wants to integrate ads directly to your dashbar. I would rather pay for an OS and not get tracked (for ad purposes) than to have all of my habits sold to ruthless advertisers.
I really hope that other linux distros don't follow this model. It seem to go against the FOSS philosophy.