Yea, I know what ETOPS is, but I'm just addressing 757 ETOPS on US Airlines. Actually, to keep 75's ETOPS certified much higher costs are required because they are not certified out of the factory like 76, 777's. In other words airlines spend lots of money to keep their 75 ETOPS standards current. Why would AA and UA maintatin 14 and 16 ETOPS certified 75's respectively if those aircraft are only used on 5-8 routes (to Hawaii). I know at least AA flies 75's to Carribean destinations such as St. Maarten and Bermuda and I was just wondering if these Carribean routes are far enough from a suitable diversion airport to require ETOPS.