Many house brands, such as Air Canada, Roots, American Tourister, etc. are all made by the same company called Holiday, if I remember correctly. Luggage is something that is marked up ridiculous amounts, so it's always best to look for sales during the weekends at the department stores.
However, if you plan to do a decent amount of travelling, you should probably invest in something that will take a beating. Get a piece made from ballistic nylon and look at the quality of the stitching. If you don't want to pay Samsonite prices, I would look at the Travelpro Crew line. You can sometimes catch them on sale at the Bay for a reasonable price.