Single deck backjack has become a ripoff in Las Vegas
Single deck blackjack has always been popular, as it’s easier to keep track of what cards are still sitting in the deck, even if you don’t technically count cards. For experienced players this is a big advantage.
Be careful, however, of most single deck games you find in the Las Vegas casinos. Las Vegas caters more to the casual gambler who doesn’t know what they’re doing, so the casinos changed the payout for blackjack on single deck games to 6-5 as opposed to 3-2. This change makes a big difference on your overall odds.
If they’re pulling this crap in any high roller game, just avoid it. You’re better off playing a shoe with 6 or 8 decks.