Is there any other must-have blu-ray best bought from Amazon.ca? If I'm going to buy Gravity, I need another item to get free (or cheaper) shipping. My Amazon Prime doesn't convey to the Canadian site.
^ Before you go to a lot of trouble Dave, I'm pretty sure there's no way for you to get "free" shipping from .ca to the U.S. (I have no easy way to tell, since the amazons know I'm in Canada.) I'll guess that by itself, you could get this disc for ~US$21 including shipping. It's selling at list in Canada, so possibly in short supply; I bet it'll come back in the U.S. soon enough, if there's any real demand, or maybe in another edition with the 3D disc included, or with UHD, etc.
It is probably true that multiple items will reduce the effective per-unit shipping cost, if it's anything like me buying from .com. Some people find that UHDs are occasionally cheaper from .ca, but I don't see anything particularly well-priced there right now. Sometimes games are cheaper in Canada, sometimes not...
As well as including the option to watch the 3D version without the score, since you can do that on the 2D version. That's the version I really want to see, but I have absolutely zero interest in seeing it in 2D.