In terms of high end optical boutiques in Toronto you really can't get much better then Rapp. They stock some amazing lines from all over the world (check out Theo, Cutler and Gross, and Mykita). They also have a really great in-house line which has some pretty awesome retro looking shapes.
I've always found the staff really helpful, the shop is set up in a way that you can't just pick up a frame and try it on yourself, they want to be a part of your experience in the store from the very beginning, its a very European way of doing business.
There are definitely things I can't afford in the store, it does cater to a clientele with a bit of extra cash but if you have the money and want something you can't get at Lenscrafters, Rapp Optical is the place to go.