We received this note from Oregon Catholic Press recently:
we have many more recordings that may be of interest to you. Although it is true that the Laus Tibi, Christe supplement to the hymnals is not discounted to stores, the accompaniment book for it is. You can find it on page 35 of our new catalog. You can also find the Liber Cantualis, the Liber Hymnarius, the Graduale Triplex, the Gregorian Missal, the Graduale Romanum, and the Graduale Simplex on page 37. We have a new resource on page 40 in chant style called “Hear the Prayers that Rise”. You will find chant for the Liturgy of the Hours in Lord, Open My Lips by Fr Cyprian Consiglio from the Benedictine Monastery of New Camoldoli on page 57, Fr Tobias Colgan's Gentle Shepherd on page 56-(Fr Tobias is at St Meinrad Archabbey). Bob Hurd's Missa Ubi Caritas, on page 62 is based on the Gregorian Ubi Caritas and Fr Columba Kelly's Passion of Our Lord Jesus Christ according to _John is also done in chant style. You might also want to check out the Taize chant recordings on page 72. On the same page as O Lux Beatissima, you'll also find O Day of Resurrection from New Camoldoli, two cds from the Solesmes, and one from the Gloria Dei Cantores Schola.
As you browse our catalog, you will see items marked with a # sign in front of the item number, which indicates a short discount to stores or a (net) after the item number, which indicates that there is no discount. Most of our business is done directly with churches, but we do work well with retailers throughout the world.
So there you have it. In a catalog of hundreds of items, about a dozen are done in a classical chant style. I'm not sure I would have bothered to mount the defense when that's all one can say.