The strongest answer is that bluetooth beacons don&#x27;t work well in huge infrastructure.  Sometimes you don&#x27;t have a place for them to go or they get stolen.  Also it&#x27;s free to use the speaker infrastructure, but outfitting and managing hundreds of beacons is not cheap.  Some of our clients have switched to audio beacons for similar reasons.<p>The Brooklyn Museum did a nice writeup of why bluetooth beacons at scale didn&#x27;t work for them.<p><a href="https:&#x2F;&#x2F;www.brooklynmuseum.org&#x2F;community&#x2F;blogosphere&#x2F;2015&#x2F;02&#x2F;04&#x2F;the-realities-of-installing-ibeacon-to-scale&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.brooklynmuseum.org&#x2F;community&#x2F;blogosphere&#x2F;2015&#x2F;02...</a>