Nostalgia powers up most if not all the buying patterns of the customer. Too bad that only a few would appreciate all the HMR release series. Heck, slapping Macross on an item isn't a sure hit.
Dougram is a classic so yes, it sold well. TechnoPolice(BBCrisis progenitor by Artmic) not so much. The Destroids, though cool, well, not as cool as the Valks. Maybe BW should do another anime to get them to sell, focusing on the Destroid as a side story in the original SDF Macross universe.