A friend of mine purchased them.
Only two of the $500k and three of the $1m got out. (So far, and so I am told )
He paid $2500 approx for the pair.

I bought the $500k on ebay in December for £123. Im surprised you didnt bid on it.
I was hopeful a friend who worked on set might be able to get some but they were too closely guarded.
He was the one that got me the high denom chips from the set a year ago, before the film co had agreed to let CartaMundi make more.