Sometimes it's not just about the price that some of us choose to fly out of Pearson. It's convenience, not wanting to drive a couple of hours after an exhausting vacation, elderly family members who don't want to drive to Buffalo, weather conditions at certain times of the year, work hours, etc. etc. etc.
If we had taken a flight from Buffalo when we went in December last year, we probably wouldn't have made it because of a winter storm the day/evening before our flight. I was alreaddy stressed from thinking our flight would be delayed from Pearson ... think how it would have been if I thought we couldn't drive to Buffalo during a blizzard!!
So be thankful that you can choose Buffalo (and I would too if I could) but realize that some people can't do the same due to various circumstances. These threads sometimes make me crazy because they inevitably end up making those who choose not to fly out of Buffalo to be foolhardy. It's just not the case.