Well, I work at a uni and have quite the influence on how we spend millions in Mac purchases every year.
Not that I would block purchases but when computer labs are to be replaced, iMac will not be on the list.
Colors can absolutely be fun, we’ve had several labs with iMac G3s in different colours, it was really cool. These colours are nowhere near as “popping” as the G3.
Not being able to adjust the screen means that iMacs will not be on the shopping list for a lot of people as it will not be ergonomically enough for long work hours.