There's a big psychological difference between the noise level in a transitory space like an office parking lot and the same noise level at a suburban home. Nob

There's a big psychological difference between the noise level in a transitory space like an office parking lot and the same noise level at a suburban home. Nobody wants their backyard, deck, or bedroom to sound like Eraserhead, even if it's subtle. (And some of the gas turbine ones are not subtle.)