You are welcome. yeah, pretty sure those are annually, it seems like the time of the year floats around a bit. Screen Archives does more spot and flash sales through the year, around holidays usually.
Call me crazy, but my guess would be, things are a bit tight at the moment for dragon, and there's a few Intrada titles he really wants, so he's wondering if he waits them out, what sale reduction might he get based on previous campaigns.