I love buying loose packs but I really wish that ESP made retail boxes. Don't know how they legally get away with selling them at the same price in retail and advertising that there is a chance at sapphires, emeralds or 1/1's when there is zero chance of hitting one from that stock.
Just make retail cases at slightly lower costs and without advertising the sapphires, emeralds and 1/1's
While it seems obvious that the newsagent boxes are light on the very high end hits the odds are based on the overall production run, not individual cases or boxes. This is why there will be no issues with false advertising etc.
Newsagent stock is less than 1/3 of the total release and I believe that all the cases they received are opened and boxes distributed in small lots. This is why you might hit three Ruby Mojo's in three boxes from one newsagent and then not one Ruby in ten others!!