You are right but it is a luxury today. One man with so much to deliver may find it difficult to have face to face talk everytime. Probably face to face talk is like a Dinner party once a while but we have eat everyday to sustain. You may also note face to face talk also may lead to Gossip than productive work as people are likely to use the phone objectivly as it is not pleasent.
Ideal for
Talking to the Mother Or Father or spouse or Grand Parents as it is full value for money.
