Last year, I recall GR having some pretty good % Off and/or Free Shipping sales during the weeks before Halloween, and afterward too. (The risk there, of course, is that many items will have already sold out.)
If you look at last year's thread, I'm sure you can find the specific #s and dates.
I just checked Grandin Road this morning and found a section called The Fix (weekly deals). They have 8 animated Halloween props (Headless Horseman, Bone Jet, Werewolf Boy, etc.) marked down 50% off. Plus if you use the code "HHOCT14" you get free shipping. I just picked up the Ghostly Bride Animated Figure for $99.50!
Grandin Road has great deals in the days leading up to and immediately following Halloween. Last year I bought 2 of the Celtic tombstones at 50% off. Just keep checking the site. Btw - I bought the werewolf rug this year. Not only does it look great, but it scared the bejeezus out of the cat!