This is an older post. A newer post with newer updates has been posted…
It looks like the price of a 3rd-party seller triggered Amazon price bots to lower the price of Amazon’s own offering of the new condition Ricoh GR II big sensor prime to $587~ [WAS $583] with free shipping. This price is from Amazon itself. The 3rd-party seller “6ave” offers it for $580~ [WAS $576~].
NOTE: the Amazon price-bots appear to be making micro-adjustments so the price may be slightly different when you read this. Latest price update on 6/4/17 at 9:26am ET.
On the other hand, if you are fond of used cameras, you can get the GR II in “Used – Good” condition for $428~ by Amazon Warehouse Deals itself.