Ex-YYZ fee is still the same. It's the connecting fee that they're cutting. So going to BUF saves way more than the $4 - isn't the ex-YYZ fee now $20?

I hate YYZ, and one main reason I avoid connecting there at all costs is that stupid $8. It's now more competitive than connecting through many US airports (PFC of 4.50); I'd still avoid YYZ if I had the choice. I repeat: I hate connecting through YYZ. Now that the train @ IAH runs to the AC terminal, I have an even better option in addition to SFO, LAX, ORD and DEN on *A flights. I have even connected through YOW and YWG to avoid the mess at YYZ.