June 2 Update: Helm’s Deep price has been fixed and is now $169.99.
Update: It does appear that they made a mistake on their prices as they have Attack on Weathertop for $179.99! Guess they shouldn’t have focused so much on marking all of the Lord of the Rings sets up (but instead in getting the correct MSRP). (thanks Hodgeman)
Forum member justinknox informs us that Toys R Us Canada currently has the new LEGO Lord of the Rings 9474 Battle of Helm’s Deep set on sale for $79.99 (reg.$169.99). Savings works out to be 53% off and comes with free shipping. The set is currently on backorder and is expected to arrive in 2-4 weeks. Mistake or not, I hope they don’t start cancelling orders later.