The major friction point is not the $1 cost, it is the effort involved in pilling out the wallet at all. Apple/Google/Amazon/etc have lowered that friction with

The major friction point is not the $1 cost, it is the effort involved in pilling out the wallet at all. Apple/Google/Amazon/etc have lowered that friction with purchasing through one click purchasing, but the majority of it is still "do I want to buy this". I would put money on sales at $1 not being statistically different from $0.01.