The fact that you want to convince your friend to join your religion would be enough not to join your religion.
Ask him if all the funny hats worn by all those dusty old men in your Church are interesting or odd.
Eventually, a long time from now, this may be required in order to move the human species to another planet (in another part of the galaxy). Our sun will eventually run out of fuel and destroy the planet, so we'll need to move.
Depends ... Apple sells refurbished iPads (16GB WiFI) for a special price of $429.00 at the moment.
http://store.apple.com/us/browse/home/specialdeals/ipad?mco=OTY2ODY4NQ