look at the 360. If its DVD drive hadn't been compromised, it probably would of survived relative unscathed by pirates. There is a flaw in earlier consoles, but they were able to remove it with a firmware update, and all consoles made in the last 3 years can't be hacked the same way. Both on the Wii and the 360 it was the optical drive that was compromised first. I think it at least helps, using an uncommon format to curb piracy.
From a customer standpoint though. I used (and bought) my ps3 to play blurays. I only started buying a few games for it later on. I like that I don't have to have an extra device on my tv stand to play movies. Its limited space, the less junk up there, the better.