This is why I love the old classic rides so much. They really did not try to reinvent the wheel, they took what was there and did the best they could with that. The Everly O-Planes were true classics in their simplicity. Is a Huss Ranger, a Larson Super Loop, or some other go around in vertical circles any different from a Loop-O-Plane? Not really. The Ranger is big, heavy, difficult to move and complex. The Super Loop (fireball, ring of fire, etc) just puts the main boom on the outside of the vehicle with that inertia loop or whatever Larson is calling it.
Why not just build modern flying scooters, octopusi, and such without requiring several hundred thiusands of dollars in lights, scenery, and sound equipment trying to hde the fact that the ride experience is the same.
When I win the five billion dollar lottery, I'll open my own show so that I can loose seven billion dollars in the first season just to make my dream of a classic midway comes true.