More than that, the experience surrounding the purchase decision for the $6 coffee is packed with seemingly reliable indicators of quality. From the neighborhood of the coffee shop to all of the design and decor of the physical place to the menu makeup to the people working there... there is a continual onslaught of conscious and subconscious information that guides one's final purchase decision.

The same is actually true with app purchase, unfortunately much of it negative (people charging real money for buggy crapware and fart apps, apps being poorly designed or full of distracting advertising, the list goes on.)

What chance do you have to bring to bear that same firehose of positive experience as the coffee shop to request $6 from your customer?

It's worth noting that unless you get siphon, any "coffee" you can find for $6 is much more than just coffee.

So the question is: how do we change the price point people associate with this service to be higher?