When it comes to selling a $500 Google Play card, there are several options available. One option is to look for online marketplaces. These platforms often have users interested in purchasing such cards. You can create a detailed listing highlighting the value and authenticity of the card. Make sure to follow the platform's rules and guidelines regarding the sale of gift cards.

Another avenue could be to approach local gaming or electronics stores. Some of them might be willing to buy Google Play cards, especially if they have customers who are interested in using the funds for digital purchases. It's a good idea to call ahead and inquire about their policy on buying gift cards and to bring the card in person for verification.

You could also consider reaching out to friends, family, or colleagues who might be interested in purchasing the card. This can be a more personal and straightforward way of selling. Just make sure to agree on a fair price and a secure method of payment, such as a digital transfer.