suggestions?

I have two Teleroboxer games (the second one came in a lot of VB games, but the first one that has a slightly worn box is the one I’m selling), so I have been trying to sell one (multiple attempts), I’ve gone from $39.99 to $34.99 to $32.99 but it just won’t sell! should I keep trying or lower it down a bit? (I know theres some auctions for Teleroboxer that are around for what I’m asking so I don’t want to lower it too much)

plus, if it sells, I was thinking I might give (at least) a bit of the money in donation to this very great site I enjoy visiting almost everyday (see, I’m not as greedy as Wario is) 😉