That is not even close to the biggest advantage. The biggest advantage is the sensor instead of a timer for how long to toast. If I had to pick one advantage, it would be that one. The fact that it also means that the raising/lowering is automatic is gravy in my opinion.
Have you actually owned one of these machines? They do not, in my experience (two different units over many years) toast more reliably than other toasters. The primitive analog "sensor" just isn't that accurate and a simple timer actually turns out to be pretty effective.
