I recently noticed that at least three trailer manufacturers are now offering gooseneck flatbeds with a GVWR up to 40k pounds.
Diamond C FMAX216 (GVWR: 30,000 to 40,000 lbs)
Maxx-D LHX (GVWR: 36,000 to 40,000 lbs)
Kraftsman Trailers G4-40 (GVWR 40,000 lbs)
This got me thinking, at what point...