It's strange to me that reports of what cables come in the box seem to vary so much. I would have thought that E* would include the same cables in every box with each receiver of a given model (Like the 722, I would have though if mine had component with it, that any 722 would have component with it). That doesn't seem to be the case though.
as far as i'm aware... none of them come with hd cables from dish. Now the company you ordered it from may have thrown them in there... or sometimes the subcontractor may have bought them himself.
I do that occasionally, but only if i'm in a good mood
And only to make the customer happy... the sales person lies to them and tells them they are included... then i have to clean up the mess