No offense intended, but... Steam is almost always on sale. There's Summer Sale, Halloween Sale, Christmas Sale, Winter Sale... basically, you shouldn't buy your game at the end of September, between Halloween and Christmas and in spring. Steam is on a Sale the rest of the time.
Wait one of those factions is a flipping DLC? Is Workshop TRYING to be cheap? Then again this is based on a game that requires you to buy and paint literally hundreds of minis...