You are correct, but I was speaking of using eSATA with a Mac without a host card or drive cage. You don't need any of that with Firewire so again eSATA loses. I tested eSATA on an old dual G5 using a port extender connected to the internal existing port. It works fine, but is a hassle. I don' think it's exactly fair to compare Firewire with eSATA when eSATA is not really supported directly by Macs. Not criticizing you, but rather the author of the article.