So, after monitoring the poll over at the Precedent, 63 responses later and it looks like most people buy their legal robes at:
DSR Harcourts Limited/Westminster Regalia
I'm wondering, though, if this is mostly due to the Precedent's readership being in Ontario, and these specific Robe Makers being in Toronto?
In fact, all of the options are in Ontario, except for Gaspard, which is in Winnipeg, and which nobody has chosen as an option on the poll.
Also, 63 responses isn't that overwhelming.
Looks like I may need to keep looking for information to help me make my decision.