Drive-thru RPG is currently running the "Complete Your Collection" promotion. Until February 25, you can complete the purchase of any participating bundle at a discount. So, if you own any title that's part of a bundle, you can buy any of the other titles in that bundle at its bundle price, rather than that item's normal full price on DTRPG.
So now is a great time to pick up any of the Gypsy Knights Games' products that you need! You can find all of our products at the link.