I would have to take issue with that "not for commercial gain" statement. I'm not a lawyer, and I don't play one on TV, however, CP is essentially a public-access area, once admission is paid. Hell, they have those "Kodak Picture Spot" signs, don't they? I don't remember any injunction against such photgraphy on the tickets or the pass information. As long as your photos do not contain recognizable images of people for whom you do not have signed releases, you can sell them. I have a couple of magnificent shots of the Space Spiral and the Giant wheel that I intend to sell, if I can. Neither has people in it, but the Cedar Point logo is plainly seen. After all, it's not like Cedar Point makes their money off the images of their rides. To the contrary, as long as the photos do not convey a negative image (sorry, bad pun, but necessary) of the park, or intentionally defame or misrepresent the park, I should think it would count as free advertising and be tolerated, if not welcome. Of course, the knee-jerk reaction of some mid-level functionary, if you were to ask them, might be "no pictures, no selling". But I bet if you found a lawyer and asked them, the answer would be different.
Just as an aside, I have a very cool picture taken in black & white with 600mm telephoto, from the tour bus lot at the park entrance, that makes the Space Spiral and the Demon Drop appear as though they are side-by-side.
Timothy A. Bretz
"Remember to pillage before you burn"
tabretz@compuserve.com