That's an interesting point, but here (and in a couple of other comments) I see mentions of gambling addicts. I'm not sure it's gambling, even if the same rece

That's an interesting point, but here (and in a couple of other comments) I see mentions of gambling addicts. I'm not sure it's gambling, even if the same receptors are being tickled. It definitely is an addiction, but I think it affects people who are 'collectors'. Maybe 20 years ago they would have got their fix of completeness by stamp collecting, or beanie babies. And I'm sure even then there were people who would happily pay through the nose just to complete a collection. I see part of the problem originating from iOS users themselves. For some reason, a large number of people seemed to think it shocking that somebody would charge a few bucks for a game, even if it was clearly something you could have paid ten times the price for on a console a couple of years earlier. So the games companies had to release free-to-play games, and realised to make money they had to target completists, and now we find ourselves with games that are essentially crippled after the first few levels; impossible to win through skill/practise, and only by buying new items can you hope to get any further.