And how long before the mini TVs get lost, stolen, smashed or clogged up with vomit/sand/champagne (delete as applicable)?
I wouldn't trust myself with one of those over three days, it's bad enough having the car key fob attatched to my waistband. I even take a crappy old mobile phone, I've lost more than one nice one at the Poo Bar. No, it's not for me, I'd never see my deposit again.