A gadgets life: From gee-whiz to junk

Web-connected and 3-D TVs are the buzz at this years Consumer Electronics Show, but it hasnt even been that long since TV went digital. Heres a look at which gadgets have gone from obscure to ubiquitous over the past 30 years, and how their prices shrank along the way:

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NOTE: 2010 data are estimates and 2011 data are projections. GRAPHIC: Alicia Parlapiano / The Washington Post - January 10, 2011.