I just received notice from Sony they are extending the upgrade offer until November 30th.
Same pricing, $139.95 for SF 10 Pro
"Missed your chance to take advantage of our Sound Forge Pro 10 promotion? Don't worry, we're extending the promotion to select customers, and you're one of them! Now extended through November 30, you can upgrade from any previous version of Sound Forge professional* software to Sound Forge Pro 10 starting at just US $139.95** "
Tim