What I've found really interesting is that I've noticed that users of free apps have the same exact psychology as someone who paid. In that a user of a free app

What I've found really interesting is that I've noticed that users of free apps have the same exact psychology as someone who paid. In that a user of a free app feels equally as "ripped off" as someone who paid for it. I asked my wife about this (she's a behavioral researcher) and she's not surprised. There is apparently some research that suggests this is the case. She's out of town right now or I'd see if I could dig up the actual abstracts. It's something that definitely needs to be studied more, but I think there is something to it. Particularly among the under-30 crowd.