I think yet another factor (that I haven't seen mentioned already) is the payload platform orientation. On a quadcopter you have a horizontal plane on which yo

I think yet another factor (that I haven't seen mentioned already) is the payload platform orientation. On a quadcopter you have a horizontal plane on which you can mount cameras or other sensors. Suppose you want to do some mapping, which is a pretty common scenario for these kind of industrial drones. With a quad, you can easily mount a camera which is mostly pointing in the same direction, regardless of air speed. With a gimbal you can direct it pretty freely. With a VTOL aircraft like your [1], the ground angle would shift 90+° degrees depending on airspeed (nose-up hover vs nose-forward flight). It would require a pretty aggressive gimbal to just keep the camera pointed towards the ground, and some angles would be impossible to get in hover mode. But for some industries like AG/large scale mapping, range is so important and you are basically always just interested in looking straight down and fly in simple pattern, that fixed vings are a thing: https://wingtra.com https://wingtra.com