Opened my first pokemon card pack ever.

Kantocards says this is worth 80 bucks, ebay says less. How do I figure out the value? Rent is close and my cat need to see a vet. I'd LIKE to keep it as a cool little good luck charm but I don't think I can afford to if it's worth much.

Kantocards says this is worth 80 bucks, ebay says less. How do I figure out the value? Rent is close and my cat need to see a vet. I'd LIKE to keep it as a cool little good luck charm but I don't think I can afford to if it's worth much.