Yes, not shipping to Canada is unfortunate. Although I must admit, I have contacted sellers who say "USA Only" and they have been willing to re-consider.
On the topic, I will say that one of the things I have always liked about this forum is the unwritten rule (I think it is unwritten) that you do not threadcr@p in someone's sales thread, period. That has been a long standing stance and I would argue it should remain. This is a free society (at least for now, how knows how much longer), so people are free to price and grade their books as they wish. If books are over priced or over graded, bite your tongue move on. My