This is not an endorsement of the Martingale, just merely an explanation of when someone might knowingly place a bet on Big 6 or 8, knowing it is an inferior bet. So while Big 6 or Big 8 is an inferior bet to the Place 6/8 or Buy 6/8 bet, one might bet Big 6 or Big 8 if they were, for example, playing a Martingale and wanted to increase the bet on 6 or 8 and had the maximum bet on Place and Buy bets. The only time you would bet the Big 6 or Big 8 is if you have maxed out your other bets on the Place and Buy bets and want to put more money on 6 or 8 or both. So the Big 6 or Big 8 is an inferior bet. If an 8 is rolled the Place bet pays $7, while the Big 8 pays $6. So lets look at the outcome of a Place 8 bet vs a Big 8 bet Put a bet on the Big 6 or Big 8 and get paid even money (an amount equal to what you bet, not more like the Place 6 or 8). Place 6 and 8, get paid more than your bet ($7 for every $6 bet).
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