Card-counting in games like Blackjack is meant to give the player an edge over the casino or, at least, to even out the house edge. If the many card-counting books written by experts are anything to go by, then card-counting must have worked once.Unfortunately for would-be counters, modern surveillance technology and other counter-measures taken by casinos have put an end to the success of card-counting.Casinos continuously introduce measures that not only even out the advantage, but are meant to completely eradicate card counting.
This is done by changing the rules: for instance, multiple deck Blackjack significantly lowers the player advantage. The introduction of the burn card could set the counter off by one card and they have also changed the pay-off from 3:2 to 6:5. Pit bosses and dealers are trained to spot counters.
Apart from the fact that successful card counting in high-stake games take a lot of skill and expertise, opinion is still divided over whether it is even worth the effort.On the one hand, it evens out the negative expectations. On the other, most amateur card counters don’t play efficiently enough to make money! Very few count successfully and of those even fewer make much money that way.Card counter make up a very small percentage of gamblers. They are not nearly as numerous and successful as people are led to believe, and there is no real reason for casinos to ban counters – except possibly that there is no such thing as bad publicity. It serves as free advertising and draws in more would-be counters to try their luck.
Card counting is largely about betting smartly: they do not win every time. In fact, they lose more hands than they win, but they earn more per win because they bet more money on hands that win then losing ones.