How much is the Nikon D90 Worth today?

I have a nikon D90 in good condition with 2 lens:

(zoom-nikkor 70-300mm f/4-f/5.6 D)
(Zoom nikkor 24~120mm f/3.5~5.6G(IF.

If I were to sell it now, How much would it be worth?

$200?

That camera is not only a classic (the first digital SLR to have a movie feature) but is still used by many of my birder friends with the 70-300 mm VR lens

With the introduction of the Nikon D500, many birders are waiting to get their hands on this camera as an upgrade to their D90, D7000 or D7100 cameras. They of course will be using the lenses that they currently have. The Nikkor 200-500 mm is starting to be used by a few birders.

If you want to know what the used retail price of that gear is, look on KEH.com. Those prices are quite accurate when it comes to the value of used camera gear