Your easily getting the odds to call based on the flush draw alone if I math is right... 3*300 + 200 + 400 + 900 + 2800 = 5200 / 2300?? (I think) and thats well over 2 to 1. Vs AJ/A9 where a king (and 3 jacks vs A9) gives you even more outs. Plus he could have 2 spades w/ a huge semi bluff where your absolutely dominating him. Or he could have a set. The main point is.... your given good enough odds to chase the flush let alone any other potential holdings that could give you more outs.

I'm not the greatest tournament player imo, if anyone else has nething to add to this or maybe change what I type feel free because I'd also be interested in hearing other's opinions. I hope this helps.