Enough profit will be made to run the charity. In the UK, a charity is exactly that, you cannot make a profit for profits sake, it all gets put back in the charity. So any money made will go to providing Raspi's to areas that cannot afford to buy them.
Buy as many as you want -there is no limit!
Principal Software Engineer at Raspberry Pi (Trading) Ltd.
Contrary to popular belief, humorous signatures are allowed. Here's an example...
“I think it’s wrong that only one company makes the game Monopoly.” – Steven Wright