Quoted from Haymaker:She is claiming somebody is offering her $3800
When someone uses this tactic on me, I politely tell them that's fine and that I'd take that offer. I then make sure they have my contact information and know I'm interested.
As others have stated, the seller is unreasonable. Walk away and make sure they have your contact info. Maybe check back in a month or so and see if it is sold. You aren't going to talk sense into them at this point when they are 2x the market rate for the game. Most likely they'll still have the game a few weeks from now. If they don't, at least you were the sucker that overpaid for it.
All that being said, based on what I can see it is worth more than $2k. I paid more than $2k for one in worse shape back in 2012.