In my 40 years of casual gunshow/shop peruving Ive seen exactly one in the wild and it was very rough, this does not include the Model 43c which is plentiful near the $750 mark.
On a side note for a shooter with a hammer perhaps the Model 317 makes more sense with its higher capacity, lifetime warranty and silver finish that hides high edge wear much better than black anodizing IMO.
On a side note:
I wonder why SW didnt reduce the barrel shank thread diameter to add thickness to the frame just above the yoke cut.
That is where the airweight frames crack, seems if the metal was thicker it would be much stronger there.
Btw I have a cracked frame 317 so it does happen.