Ok, then. How about 2.5 dollars for the x articles of this day/week?
This seems to cover most stuff where the transaction value in question is low, e.g. newspapers, single songs, and so on. The UX seems to be inadequate. I'm not privy how my buddy's company is trying to address this, but I guess it is hard to beat a news stand where I drop a few coins and get a newspaper and chewing gum.