If enough people love it, then full service pumps will still hang around as an option.
Yes we all know that companies never cut out extras to reduce costs. That is why flying domestic gets better every year, when video games are released they have been properly QAed and dont need to be patched. I remember when I was a kid you had to bag and scan your groceries yourself, now every store has all these open registers where people do that for you.
Corporate world is like this as well. Back in the day I had to answer my own calls, we didn’t have security or IT, or receptionists, or secretaries, and you had to make your own coffee. Now, I go to work in my nice office (thank goodness cubicals and open office are gone) and there are so many support staff to keep me focused on getting stuff done.
I am positive that a product that is effectively irreplaceable will be the same way.