My space is 15 years old (today), since we opened, I have consulted on 7 other facilities all in secondary or university education. None have motorized sets. Only 1 facility I have been in in my region has them. One other has a hybrid system where electrics and orchestra shell sets are motorized and the rest are manual.
I agree with other.... seems like they are trying to sell you something. I always stand by the thought that I can teach a student far more on a manual system than on a motorized system. And I can put the extra money to MUCH better use too.