[gregf]

I think you should go look at ec2 pricing. Linux/BSD instances are cheaper to run per hour than there windows counter parts.

Scroll down a page or so to view the pricing charts.

https://aws.amazon.com/windows/ https://aws.amazon.com/ec2/pricing/

[cynix]

The FreeBSD images can only be run on Windows instances (except for a few expensive instance types). That's why I said you have to pay the Windows tax if you want to run FreeBSD on EC2.