If someone actually paid $2000 for that, they got royally screwed. Not only because of the piss-poor condition, despite it being sealed, but, that's not even the original release version. Black round seal, hang tab box, 5 screw cart, no country code, and no NES-GP...that's the one you want. Opened, of course.
If I had to guess how much it costs (per game) to get VGA graded, it's probably under $50 each. They're very picky about condition when it comes to sealed stuff but, let's put it this way: 85 is beautiful, flawless condition, IMO. If you get any higher than that, it's because the factory, miraculously, did a better job shrinkwrapping the game.
Yes, they rate the fucking quality of the shrink wrap. They send you a letter explaining, in detail, why it got the grade it did. Oh, and they seal it in ultra hard plastic so you can never enjoy the game you paid hundreds...possibly thousands of dollars for.