Yes there was. I actually sold the phones and the TRS80 in the 70's working part time at Radio Shack while in the service. We've come quite a way. Not sure what everyone including teenagers did back then without their phones--
I remember a TRS80 early adopter. It was a small music store and people totally not into instruments/sheet music would come in and ask to see his computer. The proud store owner would forget he was in a music store and become the world's most awesome TRS80 salesman! It was the first in my town that I can remember and my dad was one of those who had to pay a special visit to see this marvel of technology.
The TRS80 should have been used much more but this lone store did just fine and the local papers did stories on him. He was the future and now it's hard to imagine any small store in town without a computer/laptop. But I did expect all the other stores to follow suit with either the TRS or the Apple IIe but it just didn't happen. That being said, overall sales of both were impressive for things that did not have a market before.