Smartest Light Bulbs Ever, Dumbest Idea Ever?

An anonymous reader writes "A spate of smart LED bulbs and light sockets are coming to market and seeking crowdfunding, following the (apparent) success of Philips Hue. But do they really make sense for lighting control? Here's a comprehensive roundup of 13 products and the pros and cons of the category." I like the idea of controllable, long-lasting light bulbs, but I haven't yet been tempted enough to pay $50 apiece.