Amazon Loves Canon Better?

I just stumbled the weirdest behavioral on Amazon. Wondered if anyone can shed some light on this?

If you go to the Canon 580EX II page, amazon tells you that when folks buy this they also order an Omnibounce. Makes sense, right?

But when you go to the Nikon SB900 product page, Amazon tells you that folks buy the Nikon along with a Canon 580EX II.

Now don’t get me wrong, I love canon, but who in their right mind will complement the Nikon flash flagship with a 580EXII?

Are you seeing the same thing? If so The only conclusion I can come to is that Amazon loves Canon better.

Please, be nice on the comments :)