eBay with Blutek USA has the Apple iMac 21.5" 4th Generation Core i5 All-in-One Desktop (ME086LL/A, September 2013) for $1100 with free shipping. At least $1150 elsewhere. Enclosure is only 5mm thin at the edge.
Intel Core i5-4570R 2.7GHz, 8GB DDR3, 1TB HDD, 1920x1080 Intel Iris Pro 5200 graphics, Mac OS X v10.8, Bluetooth 4.0
Deal has expired