ON double milk chocolate is also $41.56 from the same seller. I expect these to be cancelled but worth a shot!
http://www.amazon.com/gp/product/B000GIQT2O/ref=oh_details_o00_s00_i01?ie=UTF8&psc=1
Also, how's the Chocolate Isopure flavor?
http://www.amazon.com/Optimum-Nutrition-Standard-Double-Chocolate/dp/B000GIQT2O/ref=pd_sim_misc_1
10lb bag
Price history please
http://www.amazon.com/Optimum-Nutrition-Standard-Chocolate-Packaging/dp/B000GIQT2O/ref=sr_1_4?ie=UTF8&qid=1396225808&sr=8-4&keywords=on+whey