Das Keyboard has just launched a crowd-funding campaign for their new Das Keyboard 5Q. The company is known to make high-end keyboards with a focus on productivity, even to the point of marketing some models with blank keycaps to force users to learn QWERTY. This model is an “extra bright” RGB LED keyboard that uses these lights to deliver data to the user's peripheral vision (because you're not looking at your keyboard while you type, right?)
Over the last year or so, RGB LED peripherals have become more commonplace. A new RGB LED keyboard from a gaming company will come in at around the $120 – $170 USD price range. Das is known to be on the higher end of the pricing curve, though. The Das Keyboard 5Q is expected to retail for $229 (although backers perks starting at $109 contain the keyboard — and Das Keyboard is an established company, so it seems likely that these rewards will be fulfilled).
What you're getting for this cost is a high-quality, mechanical keyboard (with Omron switches) that has an open API. Their examples range from slowly alerting you of notifications, which can be expanded with a press of the volume button, to displaying your CPU load. Their pitch is that you cannot dismiss your keyboard and it's always on your desk, so, using color, it can continually notify you how much free time you have until something needs your attention. You'll need to decide for yourself if that seems reasonable and will help you be productive, or if it will just add to your anxiety, preventing you from zoning out into a good chunk of work.
As always, Kickstarters are backing products, not purchasing them, but Das Keyboard expects backers to receive their keyboards by January 2017.