Chaosium is, indeed, having a 30% off sale. Apparently this applies to all the stuff they sell online. Print and PDF. BRP stuff. CoC stuff. Even the Arkham Fire Dept. t-shirts.
The sale runs through May 28th. So start digging in the couch cushions, kids.
Time to cough up for that Innsmouth Stout pint glass I’ve always been coveting.