And it's only $1! Bargain!

From the seller's description:

Selling my PC version of GTAV.

Awesome game, finished it already so not really playing it anymore.

Hard to find for PC.

Requires a decent PC to run it.

As you can see in the 2nd images the disk has no scratches.

What you see is what you get.

Looks legit.

GTAV - PC Version - SUPER RARE!!!!!!!!! [eBay, via Gamesniped]