Unlike the price of gas, there's a lot of variability in the pricing of Chinese buns. The bottom end seems to be 3 for $1. Mashion and Ding Dong up near Spadina and College seem to be the cheaper options. For those who are coming from Yonge/Dundas or, say, the art gallery and want to nosh on some chinese buns for that perfect "what white people like" weekend outing (white people love art galleries, ethnic food, and cheap eats they can brag about), Chinese Bakery is your convenient choice.
It's a touch dingy inside, mind you. But there are a number of tables if you want to make this the cheapest lunch spot on the street. Table space seems to be at a premium, however. I can usually find a table at Mashion or Ding Dong.