Ok, imagine this: Heathrow Airport, it's 5am in the morning and the place is crammed with travellers and holiday makers. Your flight to JFK has been delayed 3 hours due to bad weather and this will probably mean a much slower flight too. You get out your iPod mini and flick through a playlist or too, looking for something to do. Nothing. Then, you notice a bunch of kiosks a few meters away. You get up an go have a look, it's an iTunes Music Store kiosk selling tunes and audiobooks tax free (it is an airport of course). You bung you pod in the little dock at the top, log into the store, pick out Bill brysons "I'm A Stranger Here Too" and using the ultra fast internet connection purchase over 5 hours of something-to-do. You finish by splashing out on a few Cure CDs and your set for the enitre journey. You might have splashed out a bit, but that's 7 less hours of wasted life, and Apple will be happy with that impulse buy.