You no longer buy gadgets to prove you're cool, or on the cutting edge of any new trend. Now you buy the newest gadgets because you need them to hack (modify, upgrade, or otherwise enhance) your ongoing projects. You already enjoy playing video games, coding your own Web sites, or setting up a network of Tivos. You might like hobbies like building homemade liquid cooling systems for your computers, creating a customized media center, writing video games or applying your technical skills to upgrading cars.

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