Actually, I bought this game and Stubbs The Zombie for $15 total from someone who was about to trade them into Gamestop when I went on a mini vacation with a friend last June. I was checking out some GS stores in an area I'd been to, but mainly on businesss when I was on a strict schedule and couldn't really stop at them.
The guy was thankful I bought them and paid cash, though I only trumped GS's offers by $1-2 total.
I played through part of NGB, then realized how bad the camera was at times, so I stopped playing. If you want, I'd probably do it for like $7-8 shipped with no problems. I'll let you know on condition if you're interested, since I don't see myself really playing this anymore due to the issues with the camera.
And believe me, I wasn't alone, since my one buddy tried playing it and the camera had 'issues' for him too. So, it's definitely not just the way I was playing it.
I'm actually contemplating putting most of my last gen games up that I don't really play on my tradelist with the prices listed being my firm asking price for each. I just have to get around to it. I'm such a procrastinator.