Honestly, it's not in too bad of shape for an average example.
However, the problem is that you're are trying to get a top dollar premium for it as if it were in absolutely mint 11/10 condition, which it's not, unfortunately.
Priced right, this game will undoubtedly sell.
If it sells in a day or two, you priced it right. If it sells in 10 minutes, you may have priced it too cheap. If it takes a week or more, then it's probably too high, and it might be a good idea to lower the price a bit.