With over 100 million iPads produced, it is impossible to say how many have been thrown out at this time. As the product life expectancy of the iPad is 7 years, there have not been any iPads that have reached this threshold. The only iPads likely to have been disposed of up to this point are broken iPads which are damaged beyond repair.
No.
The iPad costs $800 but with additional items and if you want 3G it will be another so amount of money.
If new iPads come out each year, The iPad 6 will be out in 2016.
There is no 8GB model of the iPad, the amount of GB starts at 16, which is $499 with only wifi.
I believe eBay if your lucky
The g after the 64 in the IPad stands for gigabytes. This refers to how much space the IPad can hold. Its the amount of space on the hard drive, and it can hold 8 times the original.
Special versions of the iWorks applications (Keynote, Pages and Numbers) have been created for the iPad. They will be available from the online App Store for $9.99 each when the iPad is launched but are not included with the iPad. (See links below)
No.
You can save money from each days expenses.
Each application installed can have a downloadable update, so it will depend upon the apps installed on the iPad. There have been 3 major operating system updates for the iPad 2 since it was first shipped, and each of the core apps is updated with that.
Unfortunatly, no. But the Kindle (kinda like an iPad that shows books) has it but you will need to buy a Kindle ($200) and then each book costs half the amount in real life. Each Warrior book would be about $5 on a Kindle.
iPad does not support HD so Bluray cannot be played directly. There are methods for converting HD data to a resolution and bit rate that iPad will support but a conversion is required for each disc.