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This home assistant device beats our predictions by $ 10, as well as being the best price ever, it's available for the same price at Amazon Books, Target, Best Buy, and Kohl's, so it'll definitely be easy to get, she added. If you buy it at Amazon Books, you can also snag a smart plug for just an additional $ 5. Amazon Echo( with built-in display) Amazon Echo normally retails for $ 230, but can be had for $ 179.99 at Staples. Amazon Echo is the first smart speaker from Amazon Books with a screen, aimed primarily at video chatting.