Just my taken a few secs to look in CS you can tell how rare an item is, the luck potion has tipped the balance or if the drop rate has been lowered. They have gone from a whopping 1mill-100k from release of updated miner enhancer. Says it all in my books.

Now try to farm a 30 pink, The Thinker, Stunt Harness and Vular Squishier... good luck (Selling for more cred, though before update there were only a few of these too.