With the minimum $280 you're saving on that Canjet flight, you could buy lounge access for a year for the times you fly AC without status.
What's the pitch on Canjet? I could always tell the difference between AC's 32" on mainline and 31" on the RJs (assuming that's the difference, and I assume it is since AA's RJs are 31").
Don't forget being able to get through on the phones to Aeroplan as an Elite.
andrew