Any Substitute for: iZotope RX Advanced?

Does anyone here have any experience with iZotope RX Advanced? I recently used the trial version and felt that I could never go back. It was the most powerful audio cleaning program I'd ever had the honor of sitting in front of. Problem is: the price 12 hundred dollars! When I even think about paying for it, I can feel my wallet clench itself shut! Does anyone know a substitute for this program? I tried out the $300 iZotope RX, and it was crap.