Digital HD vs a DVD with Digital HD included

So I’m trying to wrap my head around this and so far, have not been able to. I’m a fan of the Alien series and now that Alien: Covenant is available on Digital HD via Vudu and Amazon, I’ve had to fight my trigger finger which wants to instantly purchase it. The reason is that the DVD version, which comes with the Digital HD copy, is cheaper. That makes very little sense. Let’s look at the difference between standalone Digital HD and DVDs with Digital HD Included Since I’m interested in Alien: Covenant, we’ll use it in the following breakdown. […]