Playing Blackjack with a 1-deck game can be advantageous due to the lower house edge and better potential for card counting accuracy. With fewer cards in the deck, card counters can more easily track the remaining cards, which gives them a slight advantage. However, casinos often compensate for the reduced house edge by implementing stricter rules, such as limiting doubling after a split or offering lower blackjack payouts. Additionally, because 1-deck games attract more attention, players using advanced strategies may face closer monitoring or even be banned. While a 1-deck game can offer benefits, it's important to consider these rule changes and the risk of being watched.