Only the locals really buy the books for the first weekend. VT fans buying through VT aren't getting a ticket for the weekend, they are only getting a ticket for the first round, and if they win they will get a ticket for the second round.

Big teams who expect to be there all weekend and are close by (like Duke in Columbia or Tennessee in Columbus, for example, they'll have some fans buying books, and often will sell if they lose, but no teams like that are in San Jose.