SpaceX has focused on building reusable rockets (government-built rockets are one-use disposable models), with the end goal of drastically decreasing the cost of space travel.

FORBES: How Elon Musk Became A Billionaire Twice Over

Rather than the cost of content increasing commensurately with the cost of talent, the cost of content (notably online education) is decreasing in some cases to zero just as the top talent (the star professor) increases in value due to global distribution.

FORBES: The Coming Age Of The Teaching Megastar

His team read the chemical bases of the DNA with a machine made by Illumina, the San Diego company that has led the way in decreasing the cost of DNA sequencing.

FORBES: A Tragic Case And A Genomic Hope

Additionally, restructuring of the administration of U.S. food aid would increase the number of people reached while decreasing the cost to American citizens.

FORBES: U.S. Food Aid Needs Overhaul, says Report [Infographic]

Production cost of solar cells, and correspondingly, solar modules is also decreasing worldwide due to declining input costs, particularly polysilicon and silicon.

FORBES: Don't Stay Out Past $14.40 With SunPower

Meanwhile, decreasing the number of elements would decrease the scope of the game and cutting the cost of the toys would almost certainly mean downgrading their quality.

FORBES: Connect

The results of the pilot show an increase in compliance with medication and a cost savings due to decreasing or stopping inappropriate medication.

BBC: A pharmacist with a prescription

International business schools tend to be much less expensive and most require approximately 1 year of study rather than the traditional 2 years required by US MBA programs, decreasing foregone income and thus opportunity cost significantly.

FORBES: The Rise of the International MBA