When there is no sales on eggs, I normally buy $2.10/dozen of extra large eggs at: Epicerie Segal, 4001 St-Laurent (~2 stores south of Duluth)
Good place to shop groceries <=> long line up, bring your own shopping bags(no plastic bag there).
Whenever biggish supermarket(Metro this week) has EGGS on sales, all MAXI, SUPER C, LOBLAW will have it at same price. Hence expect to find $1.50 at Super C and Loblaw also.
(I think Banana, Lettuce, Sugar has low price guarantee also, check on last page of flyers)