or a strap
On Nikon's website (http://www.nikonusa.com/home.php ) they show complete cameras (body and lens) but underneath all but the D40 it says (body only). If you look at their tech specs, you will see what is included in the box with the camera body. That's what you should get when you buy your D80 new. If the dealership is selling you less than this, then go somewhere else.
If you're buying a package, that includes a lens. You will get two boxes, one with the camera body and one with the lens.
If you're unsure of the dealership, do an on-line search to see what other people have said about them.

If the ad listing says "camera body" then no lens is included at the price point they are offering, and a lens of your choosing would have to be purchased separately.
I don't know where you have been looking, but B&H Photo is an excellent source, with an excellent reputation…and their web site is great for finding things!
http://www.bhphotovideo.com/bnh/controller/home?shs=nikon&ci=989&sb=ps&pn=1&sq=desc&InitialSearch=yes&O=catalog.jsp&A=search&Q=*&bhs=t
References :