Lets take it that people are worried about being ripped off. If it was easy to return an app for a refund from Apple, would you expect the baseline $0.99 price to go up?
I purchased Dark Sky a couple weeks ago on the recommendation of a friend. I thought the $3.99 price tag was way too steep for what is mostly likely another crappy app, and I would never have bought it if my friend hadn't sung its praises.
And it's now one of the most useful apps on my phone, and if it had been a 14-day free trial, I'd happily pay $20 for it.
If free trials were available, like are common in the desktop software world, I think app prices could go waaay up.
