What travel agents learned from Expedia, Borders learned from Amazon, Tower Records learned from Apple iTunes and Blockbuster learned from Netflix, the traditional game makers are about to learn from free-to-play online video game companies: their business is about to fall off a cliff.

FORBES: Mobile Gizmos Hastening The Demise Of Video Game Consoles

While some children quickly learned how to save up an allowance for major purchases, most kids learn a more immediately-satisfying method: Spend your allowance on whatever you want to buy right now.

FORBES: Should Adults Have an Allowance?