Then I'm not sure why you brought up your personal goal in Vegas. Can you explain why it was relevant?
I can only speak and have only spoken for my goals and they are, in some ways, largely the same at the blackjack table and the D&D table - to be successful. In the case of D&D, that includes (but is not limited to) my characters achieving what I put them in the position to achieve. Avoiding the swinginess of a d20 wherever possible is my strategy for achieving that, just like certain betting strategies might be how I avoid losing more money than I win at blackjack.