If you need it, it's a bit over $1000/month. Which on the one hand is perhaps 2-3x more than renting a dedicated server. On the other hand it's only 2-3x times more than renting a dedicated server and if you have other stuff on AWS and make use of the rest of their features it might be worth while.
Yup. Small multiples of price inefficiency mostly don't bear thinking about until they group together in large batches. The time it takes your engineers to work out the difference is rarely worth it.