How much is an old Bell & Howell camera worth?

I was at an estate sale, and they were selling an old camera. I think it is a Bell and Howell 8mm Home Camera, based on the photo from wikipedia: http://en.wikipedia.org/wiki/File:Bell_%26_Howell_...

I remember that on the front, there is what I think is a viewfinder, with a red rectangle and a yellow rectangle on the viewfinder (front). There is a crank on the side like in the photo. On the front, there is a triangular part like in the photo, with three lenses. One had a green circle around it, one red, and I think one yellow. It also came with a sepia filter. How much would this be worth if I tried to resell it? It was in good condition for something that old, with scratches. It was selling for 25 dollars, and I think I can lower it down to 20 dollars. Would I make a profit if I bought it and tried to sell it? Should I sell it right away, or put it in a safe deposit box and wait a few years?