Thomas Baekdal writes on How In-app Purchases Have Destroyed The [Game] Industry:
We have reached a point in which mobile games couldn't even be said to be a game anymore. Playing a game means that you have fun. It doesn't mean that you sit around and wait for the game to annoy you for so long that you decide to pay credits to speed it up. And for an old geezer like me who remember the glory days of gaming back in the 1990s, it's just unbearable to watch.Drew Crawford answers:
See, in the in-app purchase model actually predates phones. It predates video game consoles. It goes all the way back to the arcade, where millions of consumers were happy to pay a whole quarter ... to pay for just a few minutes.
Gambling For Kids: A How To Guide - a discussion of claw games, Panini sticker books, and in-app purchases in free-to-play games for kids.