Ozone 5 is pretty sweet too. I was trying to decide between the two when I got a good deal on T-racks deluxe ($69). I may still get O5 for the same reason you say, plus the limiter is fantastic. I also plan to get T-racks grand when it goes on sale. It was a $99 upgrade at Christmas.
Fab Filter is really nice, but for $389 it freaking should be.