Much of what the media, particularly the tech media "reports" on is really just paid advertising. >Numbers on Portal sales are hard to come by. That's buried

Much of what the media, particularly the tech media "reports" on is really just paid advertising. >Numbers on Portal sales are hard to come by. That's buried in the article. If the sales numbers are hard to come by, how do they know it's a hit? Because Facebook says so? Questionable.