I am 100% sure there is no trick to the machine. If there is, the big guys here are hiding it away as a secret. While there is no trick, it is a fun
rush. It's a huge gamble to be completely honest.
Here are some 2 year old statistics. They bought 1000 Nerkmids.
This was taken directly from (you need an account to see links)
So I guess, according to this info, the trick is to buy nerkmids under 35k.