You could buy
You can buy one of the following:
Buy all billionaires
You can buy each US-dollar billionaire one of the following items:
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Words by Stephen Fry
Cost per word of Stephen Fry's column for £3 (د.ك1.31)
Shopping list
You can buy all of the following:
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400 Carl Sagan's Cosmos DVDs
Inspirational and wide-appeal science series. Thirteen episodes, each one hour long. for £11.71 (د.ك5.13) from source