What is the value of a 1989 Topps baseball card factory set?

1989 Topps baseball card set

The 1989 Topps baseball card set consists of 792 baseball cards, and has a book value of about $15.00 in near mint-mint condition. A sealed factory set has a value of about $25.00. Key cards in the set include: card number 49 - Craig Biggio RC, card number 382 - John Smoltz RC, and card number 647 - Randy Johnson RC.