Cloud Pricing | Estimate Development Costs Using Engine Yard Cloud

Engine Yardの料金計算機 東京リージョンだとサーバー費用はEC2の約25％増しで高くはないと思うけど、転送料金がEC2の3、4倍する。なんでだろ。私の計算ミスか、こういう料金設定なのか。JavaScriptのバグじゃないよね。

How Much Am I Really Going To Pay? There is no single answer to this question because pricing is metered. Most Cloud customer use Small and High CPU Medium Instances which cost 11¢/hour and 20¢/hour, respectively, or roughly $79.20 and $144 per month (based on 720 hours a month). In addition to instance pricing, you'll be paying for bandwidth, EBS storage and data transfer, and S3 storage and data transfer. These other costs usually run 7-8% of instance costs. Most importantly, your ongoing costs are computed daily and displayed on your account screen in #{t('appcloud')}, so you can always see exactly what you are spending at any time. There is no separate Amazon bill; all your costs are included in your Engine Yard bill. Can I Cancel At Any Time? Yes, you can cancel your Cloud account at any time. You will be responsible for paying for your usage up until the time that yo...

Full article: http://www.engineyard.com/products/cloud/pricing