I tend to get most of my DVD's region free nowadays... mainly as they come with cool stuff, sometimes at no extra cost! My special ed Sky Captain came replete with a model plane (OK, a bit crap, but better than the R2 release), Seven Swords gives you the opp to buy it with the sword replicas, and now I discover Corpse Bride with McFarlane figures! Let's not forget Oz too - I can get a 2 disc region 2/4 version from there of Serenity.
Why do they get so many cool things? Is it to differentiate the original copies from the pirates and give people more reasons to get official releases?