Here's another thing that confuses me: apparently android users would rather look at ads all day than spend $0.99.
So I've got this app, Typing Keyboard. It is, as the name may suggest, a keyboard. It costs $0.99. About a month after I released said keyboard, I decided to release a free version with ads. The free version now has around 100 times more users. And based on the ad impressions, they're actually using it quite a bit. This confuses me to no end: the ad-supported version is really, really annoying. It pops an ad up right above the keyboard, sometimes right where you're typing (this wasn't intentional, but the keyboard system is a bit weird on android and it sometimes just happens). $0.99 isn't even enough to buy a candy bar in most places now. Why would you even consider the ad version if you liked it.
It doesn't really bother me, I suppose—I'll probably get paid more per-user with the ad-supported version anyway—but still, really, people, really?