Rakuten.com, for instance, is listing the Amazon Echo Dot for $60.95 with free shipping included. Over at eBay, sellers are asking steep Buy It Now prices of $70 to $150 for the Echo Dot, and $280 to a crazy $1,000 for the taller Amazon Echo.
Video on the cost of concrete floors. Depending on the level of complexity, concrete floors can cost as little as $2 to $6 a square foot or be as expensive as $15 to $30 a square foot. Typically installers put down a series of products including waterproofing, metal lathe, a concrete overlay and then the final finishing and sealing coats. 2  These applications can add another $2 to $3 per square foot to the cost of the floor.
Greg Demmert, with Demmert & Assoc. in Los Angeles, installs polished concrete along the West Coast in both residential and commercial locations. For a fairly smooth floor, that requires only a few levels of grinding, Demmert says $3 sq. ft. is the basic cost for a polished concrete floor.