Big Winner, The Tops

Big Winner, The Tops is an unmarked quest in Fallout: New Vegas.

Quick walkthrough
To complete this quest, the Courier needs to play the games that the casino has to offer (Blackjack, Slots and Roulette) until they are banned from gambling in the casino. They can be banned by winning too many games and getting too much money from the casino. During this process, three different prizes will be received from the casino, after the Courier wins 2500, 5000 and 7500 caps. These prizes are usually given by the floor manger of the Tops.

Detailed walkthrough
As the Courier wins the games that the casino has to offer, they will receive the below rewards after reaching the chip amount:
 * 2,500+ chips: vodka
 * 5,000+ chips: brahmin steak and wine
 * 7,500+ chips: The Tops High Roller suite key

After winning 10,000+ chips, the Courier will be banned from playing games in The Tops. They can still use its other functions like the bar, but cannot gamble on its tables anymore. This ban is permanent.