Amazon is matching some of the sets in the previous post by using instant coupons. For instance, the Clone Trooper/Battle Droid BP is $29.97 - $4.48 coupon. And the beauty is that the coupons stack. Not sure of the limit but I know that it is at least 10. Again, not a super discount but a small one if you are stocking up.
More sets have been added to the "Cash-Back" event at WalMart. They aren't killer deals but does allow you to save a little $$ on what I call "staple sets."
A few that caught my eye:
332nd Battle Pack - $2.50 cash back from $15.99 price
Clone Trooper and Battle Droid Battle pack - $4 back from $29.97
Duplo Steam Train - $11 back from $64.99
Many other sets, including Jurassic World ones. Some can be stacked (i.e. $7.50 back on three battle packs) and some can't. All should reset after your order ships so that you can order again.
https://www.walmart.com/search?q=lego&facet=reward_eligible%3AWalmart+Cash+eligible
Just got my Barad-dur, kinda disappointed. Safety is obviously the priority, but the new warning label are huge and takes away from the nice image of the lego set. I wonder if boxes without it will be worth more than the ones with them.