It wasn't a sale. The price was dropping steadily. That tends to continue, unless there is sudden interest due to, say, somebody prematurely calling attention to the product in an online forum.
What I meant was the price was less than it was when I first posted this a couple months ago, but If the MSRP / original price remains the same it's not a price drop it's a sale or discount. But let's lock the thread since people buying a game can prevent the price from decreasing as much or as quickly as some people would like.