Dark Knight Trilogy blu ray set is on sale at amazon.ca for 29.97. Future shop and Best buy have it for 37.99. I bought my buddy the dark knight with steelbook from FS for 27.99 for xmas. For an extra $1.32. I can get all 3 movies so going to return the FS exclusive version.
http://www.amazon.ca/Trilogy-Limited-Edition-Giftset-Blu-ray/dp/B009JL9MMI/ref=pd_cp_d_0
The Dark Knight Trilogy (Limited Edition) (Blu-ray) : Action / Adventure - C-E - Best Buy Canada