I've mentioned it before I'm sure, but I've got a fair few sealed DVDs on my shelves at home, because I've decided I want to own it, yet I'm watching downloaded versions of the DVDs that I paid for, because they're easier to use and someone's kindly stripped all the BS from the recordings.
Apparently I'm still a dirty filthy pirate for doing this and deserve to have my internet shut off and sent to jail, because I'm just not LISTENING to the lectures put on the DVDs. Why won't I just pay attention, hmm?
Others I've only unwrapped to watch the extras, because you rarely get downloads of the extras
I've said it a million times however, make stuff cheap and easy to both GET and USE, and you'll cut piracy overnight.
Make it expensive, annoying to watch with warnings and ads, then lock it to certain countries, then further lock it to a number of viewings or only on certain devices, and screw you all, many people will take the free one.
Steam however, has people buying stuff they ALREADY OWN, because of the simple ease of use. £2 for Deus Ex? and I don't have to find the CD and the CD key? Sign me up!