LOL you're not very familiar with the Samsung devices, are you?
I guess it was more on the point of do you have to pay for the damaged iPad etc.. I mean the natural answer is yes, unless it was truly an accident (and you took all reasonable steps to make sure you were not going to damage the iPad).... Just that I can see some people possibly getting agitated and maybe spilling the odd wine or two on the iPads, or using messy fingers to use the iPad, then blaming Qantas for not providing a robust solution (cf. most IFE systems stand up to plenty). You may also have some (usually older) types who can't use iPads or similar devices, and may mistakenly use ballpoint pens as styluses, scratching the screen.