The relation of logical implication over sentences is an example of a preorder.
For most of the games you can preorder at this retailer, you only need a $5 deposit.
The last thing you want to see when you arrive at the local video game store is a "sold out" sign, so it's probably in your best interest to preorder Nintendo Wii games.
Some companies also offer blank invitations for customers to preorder their personalized text or wording.
A few retailers let you pay for the whole cost of the game on the day you preorder it, if the store knows the retail price.
Gamestop. This company has been doing preorder games longer than most retailers and gives you a couple more choices to pay for the game.