Ours were $35 for 140 page hardcover book in colour. We used the company Friesens that are actually located here in MB. Normally I wouldn't suggest a Canadian company, but most of Friesen's yearbooks are actually from schools in the states, in particular many from Texas and California.
Friesen's has a bunch of resources that they send your school, with great info on how to make a proper layout, how to crop pictures, how to caption pictures,...etc. They were really, really nice and went out of their way to help us!
Fun fact: The Friesen's plant here published the first edition of the North American release of the final Harry Potter book
