When Rousseau wrote his social theory, concepts of liberty and freedom were not new ideas. Hints of social contract reasoning are found in earlier works, most notably in Book 2 of Plato's dialog The Republic, as well as, in Socrates.
The total spending per iTunes account is $43 per year across all media, says Dediu. At 575 million iTunes accounts, that works out to $24.7 billion of consumer spending at iTunes per year. The average iTunes account's annual spending on software has followed music's trend, falling to $9 from $42 in 2008. However, average annual spending on apps has gone in the opposite direction, rising to $16 this year from $7 in 2008.
Although apps come pretty cheap, did you have any idea that some apps cost tens or even hundreds of dollars to download on iTunes? Some of the highest priced apps even go as high as $999.99. Just to pique your interest a little, here are ten of the most expensive apps you can find in the app store.ave you ever paid more than $5.00 for an iPhone app? Most people would say no to answer that question. In fact, most prices for bestselling apps on iTunes range from free to $1.99.