Then they can show the two Fire owners getting buyer's remorse when they realize they have to pay nearly a hundred bucks a year for Prime (which only makes sense if you're a hardcore Amazon user), they have a small number of apps to download, can't use apps that require an accelerometer, can't take pictures or video, can't Skype, can't surf the web without Wifi, can't do anything that requires more than two fingers for input, can't read it at the beach or in any bright sunlight (a former selling point of the Kindle), can't store more than 8GB worth of media (which sucks I'd you're gonna be out camping or somewhere without Wifi), and can't even turn the volume up or down without using the onscreen controls (which can be touchy on most touchscreen devices).
Oh, and there's no built-in email app. The Playbook was crucified for that. Sure, it cost more than the Fire, but my $30 Sanyo Katana phone has freaking email.
i can list many more things that you CAN'T do on an iphone. but what is the point? It IS what it IS.
and as people have already pointed out, Amazon prime is NOT REQUIRED. Fire will come with 1month trial. it is a great service. for $79 you will get two day shipping regardless of order amount, and free streaming of over 10,000 movies+shows. again, it's OPTIONAL.