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.
Polished concrete cost tends to be more economical with large spaces. John Buteyn, Senior Technical Manager for Colorado Hardscapes in Denver says smaller residential floors tend to be a bit higher in price because of the requirement for smaller equipment and for getting into smaller spaces.asic cost for a polished concrete floor that requires only a few levels of grinding, according to Greg Demmert of Demmert & Assoc. in Los Angeles.