The initial Verticraft would not be mass produced and compete with the current aircraft market. Only when the demand for the aircraft becomes high enough can the aircraft be mass produced. Henry Ford had the same problem in 1914 with a greater problem of lack of roads to support the auto. Global gridlock of ground vehicles and the cost of roads and bridges to support them will accelerate the demand for the Verticraft.
China recently had an 11 day traffic jam with the average commute in Beijing being more than 5 hrs. By the way you mention a flying car in your last sentence, it is not a flying car and cannot be driven on a road, the whole point is to eliminate the need for paved roads which destroy the environment.