After Archie leaves his house for Vegas you are shown a aerial view of Brooklyn. If you watch the bridge in the lower right corner you can not only see the shadow of the helicopter taking the footage , but the helicopter footage is rewound as seen by the helicopter floating backward.
After discovering that Binion's had no rooms, they headed to Aria. in the next scene, they are walking with their luggage on the strip heading north up the strip away from Caesars palace. Aria is in the other direction, south of Caesars Palace.
When Archie buys in at the blackjack table for $15,000, the pit boss would have stopped the transaction and asked him for ID and his social security number. Any cash transaction of over $10,000 requires this.