"Premium User Interface" - you know how when you ring up a bank and essentially they're just reading you stuff on screen and typing your answers in? They're basically just an extra layer of UI. AI and text-to-speech will increasingly make that redundant, but it'll mean the UX will get demonstrably worse. So some companies will pride themselves on retaining those real humans as the front end of the UI, even though all they're doing is relaying information to and from the computer.