Early in your career the learning is worth far more than the salary.

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But is learning moderately good Chinese worth the opportunity cost?

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It's also worth pointing out that there is somewhat of a learning curve for first-time users.

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But learning to share the pictures with friends takes more effort than it is worth.

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Mastering original jet fighter technology is a challenge and learning about one of the hottest battles of the Cold War makes it a simulation worth flying.

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