We've replaced secretaries with software, and now we have people making $150k+ a year busy working on things that they should be paying someone $40k a year to handle.
It's easier to prove that one "saved" the company money by removing a support position than to evaluate the amount of money wasted yearly by engineers having to buy paperclips and figuring out how to expense them in the horrible expensing software.
So some of the savings is good. It is faster for me to schedule a meeting in outlook (not the same company) than to find a secretary to schedule my meetings. However the secretary might be worth going back to just because they always knew important gossip that was worth knowing.