I miss AimeStreet. It was a site for independent artists that started tracks at free and then slowly increased them to $0.99 as they sold more copies. Amazon gobbled them up and shuttered the site. I’ve never found a replacement.
Even better, if you reviewed a song, and the price went up, you received the difference as store credits. So reviewing a song early could potentially net you some credit if it became popular. That was one of the most interesting features I've seen in a music store.
