Don't pass is a much safer bet if your goal is to bet once and double your money. Blackjack can have a positive expectation (craps cannot, absent some unusual p

Don't pass is a much safer bet if your goal is to bet once and double your money. Blackjack can have a positive expectation (craps cannot, absent some unusual promotion) but that requires much skill. Even with knowledge of basic strategy though, which can get the house edge very low (assuming rules that favor players, like what you'd find on the Vegas Strip) it's not a good all-in wager. A significant amount of the EV from blackjack comes from doubling down and splitting, which require you to put up extra money, so if you're playing it all-in, you're much more likely to go bust than at roulette or either line bet in craps. Also some of the EV comes from blackjacks (typically paying 3:2) so there is some chance you'll end up with more money than you need. You could walk out with $325. Again since marginal utility is diminishing the extra risk is bad.