Though, as you say, the SAQ/LCBO "markup" you have to pay on it is obscene, so it's seldom worth paying duty on wine unless you either bought it at a very good price, or it's something like Romanée-Conti that you couldn't get in Canada at any price.
Interesting. Do those of us living in free market provinces have to pay that when entering through YYZ and/or YUL? I've only ever brought back alcohol on flights entering Canada through YYC, and I've never been sent to pay for it.
Michael