Dice take priority over cash in Ghostly Gardens until the next Peg-E token milestone is too far away for your remaining rolls; cash is filler unless a Builder flash is active. In Monopoly GO, the event runs from October 26 at 4:00 PM ET to about 1:00 PM ET on October 28, so check the in-game timer before spending. The Monopoly Go Partners Event phase closed around 3:59 PM ET on October 26, so...