Actually, Sound Forge Pro 11 is now 32 tracks at 64 bit, and goes up to 192khz. For me to upgrade it is $199usd, from SF8. That must have come down, because I recall thinking I didn't want to spend $250 on it, when it was released.
The Spectral Layers intrigues me, but several folks have said that iZotope's Rx4 is better. I know that a program like either, would be very handy. Being able to "clean up audio", since I don't have a isolated room, at the moment, would save me from discarding good takes, while the furnace kicks in, or the dogs bark!LOL
Michael