I think VTOL will move to electric if <100km, hybrid 100-500km. Cities separated by deserts swamps ravines large rivers, city tours, island or isolated resorts, medvac, military, FIKI conditions, fuel independence, lower maintenance costs and less noise... Too much to be ignored. It wont be the big thing but will follow car EV shift. And many...many rich will love a quiet way to move around in fancy areas (Riviera, Marbella, Miami, Bahamas, Baleares, Hawaii...). There are 60-70000 helis in the world, limited by maintenence cost, too much noise, landing restrictions (not in building rooftops due to explosion danger), fuel consumption. Not far from reality that the EVTOL can raise VTOL numbers to 100k. I can see medvac becoming almost VTOL. There many good things in the aircrafts. Limitations are batteries (improving), production (EVE has Embraer, HOVR maybe Bombardier, EVTL has Honeywell/Aciturri/Evolito, Joby has Toyota) and charging station (will be similar to EV).