There are many opinions here but keep in mind that its much easier just to tune to a station of a house you are driving by than to pull out your phone, go to zillow, search on zillow, pull up the listing, deal with ads.. blah blah blah.. Waste of time the internet has become in many ways. Its so commercialized now that it takes longer to pull up a site and deal with popup ads than it does just to call or listen to a recording from a signal.
Audio is timeless and why not offer it and then give them the text number within your audio ad or your direct web link instead of sending them to Zillow and let them steal your lead and send it to one of their idiotic paying premier agents.
Not very many smart people here.