One of Amazon’s most audacious Alexa devices—a wheeled robot that acts as a mechanical guard dog for small- and medium-sized businesses—is heading for the recycle bin. Astro for Business, the commercial version of the Alexa-powered Astro robot, will cease functioning on September 25, a victim of Amazon’s shifting priorities for its consumer robotic division, GeekWire reports. Owners of the $2,350 Astro for Business bot will get full refunds, along with a $300 credit to “help support a replacement solution for your workplace,” according to Amazon emails sent to customers. As for the robot itsel…