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.
Typically, concrete is not considered polished before 400 grit, and it is normally finished to either the 800, 1500, or 3000 grit level. Stains and dyes are often applied to enhance polished concrete as well as other options such as scoring, creating radial lines, grids, bands, borders, and other designs.