Benefit of recording 32-bit audio?

Notwithstanding a discussion on proper gain staging, I can think of 3:

  1. You want to preserve any transients that exceed the 0dB TPL.

  2. You print a final mix but might want to add processing at a later time.

  3. You exchange stems with others using 32 bit FP systems.

One can also argue about the S/N quantization being less audible in a 32 bit environment or that the amount of data available for dithering or in-line processing contributes to a “fuller” sounding product but those are discussions based more subjective than empirical.