For the daily mobile bonus (iPad or iPhone if it matters), I get a choice between 3 boxes. It's either gold coins, freeplay coins (25,000 up to 800,000 one time)...but sometimes it's 'merchandise'. By that I mean 'sports car' or the like. You can tell it's a collectible, but for what? Is there something these items go toward that will lead me to more coins or prizes? I can't seem to find what these are or where they go when I select them as part of the bonus each day.