According to photoprice.ca it is $487.22 CAD shipped from B&H, so with a filter and hood you still got a good deal. You did save around $200.
I paid $425 for mine used (no box or anything, just the lens) I could have probably got a better deal but it was local, so no shipping plus I got to test the lens first hand.
I like mine, it's great for low light but I mostly shoot with it wide open (or up to f/2.8 or so), if I can shoot at f/4+ then I prefer my 70-200, which mine is a super de-duper sharp copy. 