How much should I sell my sealed Pokemon Omega ruby for?

I got it for Christmas, but..... I don't have a 3Ds, and I want to get A Nintendo switch because I want to play Zelda (I've never played a Zelda game. Kill me.) .

Also, how do I make this a question? .-.

Amazon will send it to anyone in the US for 28 and change.

I'm guessing 20 will convince someone to buy it?

Give it to me for free.