You can't beat the price. Liturgical Press is having an inventory reduction sale through June 30, 2008.
You can get the ceremonial edition of the Lectionary for Mass at about half off (from $49.00 to $24.50). And the chapel editions are just $17.49 (down from their original price at $69.95!).
Go check out what else they have on sale. There's lots of great foundational liturgical studies texts too.
Here's the link to the Lectionaries sale page.