Okay here is my opinion. I think we would’ve saved alot of money. I have had 3 different phones, my husband has had 6. I believe we would all be using very sophisticated walkie talkies to speak to each other. Each of us would have our own channel/frequency. When you wanted to speak to me you would click my number just like a phone, except it would have been a channel. The way we would’ve saved money is that anyone can make a radio like object to pick up air waves, and we cannot with phones. That means competition is lower for phones and makes them more expensive. Ofcourse, you would have to buy your channel, so I don’t know how much they would charge for that. I could be wrong and way off, but thats my opinion such as it is.