Over at amazon.com, I noticed that as of this writing, season 4 is currently ranked #61,128, while over at at the Canadian amazon website, it's ranked #2,108. What's that supposed to mean? That season 4 is a better seller in Canada than here in the U.S.?

Over at amazon.com, I noticed that as of this writing, season 4 is currently ranked #61,128, while over at at the Canadian amazon website, it's ranked #2,108. What's that supposed to mean? That season 4 is a better seller in Canada than here in the U.S.?
Yes! That's exactly what it means.

Amazon Canada probably has less items than the United States Amazon so that could be why the number is so low compared to the US site.