The monotony of regular bingo is often broken by playing special games. Special games usually require special cards that must be purchased separately for the game which usually has a slightly higher prize than regular games do. The casino games played on these especially purchased cards are usually some sort of pattern game or some sort of multi-stage game that leads to a coverall. Since these cards represent an additional expense to the player, they usually only buy a few cards to play for this game. The player may want to re-think this strategy. Bingo is a game of chance, a fair game in which every number has the same chance of being selected as every other number does, as long as the balls are equally weighted.

This means that each card has the same chance of having the winning numbers as every other card. This means that if players all play the same number of cards, they all have the same opportunity of having the card with the winning numbers.  The UK casino player who play more cards than the others have a greater chance of having the card that has the winning numbers. Players with fewer cards have a lesser chance of having the winning card. Special games may be a time when players want to increase their card purchases to increase their chances of winning. Players must weigh the increase cost of the extra cards against the value of the prize to ascertain if it is worth it to them.