The Washington Post on the heels of CES that shows the price and penetration of devices over time via a interatctive infographics. Interesting to see the price drop off of the standard cellphone vs. the smartphone which still has a relatively high premium.
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:
Be sure to check out the original version of the infographic on the WP site as it's fully interactive and has more data for computers, TV, video, photo and audio.
More Info: A gadget's life: From gee-whiz to junk