The Raleigh/Durham/Chapel Hill area is pretty strong from the education and workforce point of view. Locally there are three highly rated research universities: UNC Chapel Hill, Duke, and NC State University, along with a number of smaller schools: NC Central, Shaw, St. Augustines, Meredith, William Peace, Wake Tech, Durham Tech, etc. Go just a little further out and you have Campbell, Elon, Wake Forest, UNC Greensboro, NC A&T, and the like.

And the area is already known as a strong tech hub, with companies like IBM, Cisco, Microsoft, EMC, and many others having a long-time established presence here.

I can't really compare to Toronto since I don't know much about that area, but I'd say one of the strongest reasons to consider the Triangle relates to the workforce and the education scene.