Earlier quoted context omitted.
With the rate at which electronic safety features are advancing, I think the advantages of buying used have fallen a bit. A new base-model Corolla currently has more electronic safety features than a high-trim 3-4 year old Avalon or Lexus. That's a recent phenomenon, though, and it might be a temporary condition if the rate of improvement of those systems slows down.
How did everybody manage to convince themselves that they need these expensive add-ons? You need seatbelts, airbags, and impact absorption. That was perfected 20 years ago. Everything else is a luxury not needed for driving.
The little indicators if someone in your blind spot is also a HUGE safety increase for drivers and bikers/scooters/etc.
Those should be as standard as seatbelts an airbags in 2020.