Having worked at a mobile games company: they actually are! We were heavily propped up by, among other things, Saudi oil tycoons trying to out-spend their (equally-rich) friends in cash-shop items, for the sake of being on the team with the highest power-level. We were effectively a virtual arms dealer selling to both sides of each little status-war between these folks. We considered them so important to our business-model that we took their likes and dislikes heavily into account in deciding which new games to make.
It matters -- if games just push the buttons of bored engineers/doctors/business owners well and they spend a few hundred bucks a month on them, well, I'll never buy a Hamilton ticket but I won't look down on anyone buying or selling them. If OTOH the entire social industry is exploitative and propped up by vulnerable people then that changes things.
A presentation to read if you're interested in this topic: http://www.slideshare.net/emily_greer/dont-call-them-whales-...
For other businesses, the gains from the revenue increase in some groups may trump the gains from the losses in other groups, or the other way around. Your mileage may vary.
1. I always get wrapped around the axle on pricing discussions - will x offset y? How will different groups react? I'm not crazy! It is hard and the effects do sometimes totally offset. Radically changing your pricing may in fact have absolutely no effect whatsoever. Whoa!
2. I wish more companies would publish results like this and we didn't have to rely on the occasional (though terrific!) academic study. I'm sure Amazon runs experiments like this all the time.
3. I feel genuinely bad about the mobile game industry and how these "high value customers". Maybe I'm making a bad assumption but it seems unlikely these folks are the idle rich spending their spare thousands on gold bars.
4. There might be metrics in your business that are much harder to move than you would think. Local maximums that might be very hard to change.
Terrific, terrific study. Kudos to King for this, at least.