A Google search did not show any at the major online retailers except Seaboard Liquors in NC. They have it at $11.99 (!). Also Martin Wine in New Orleans at $14.99.
One review of the Altos de Luzon indicated that there were only 1500 cases produced. The quality level is fairly high on this wine.

The same winery, Finca Luzon, also has a widely available merlot that is under $10 and is rated an 87 by Parker. That might be something to check out for a house-type wine. Winelibary and many others have this one.