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I know that gas is used to keep contracts running but what are other usages for ether? Is ether used for buying all kinds of virtual tokens, will you need ether to use dapps or how is ether going to be used in ethereum economy?

Please provide as much information as you can on this issue.

merged by eth Jun 13 '17 at 9:19

This question was merged with What is ether? How is it different from other tokens such as bitcoin? because it is an exact duplicate of that question.