I prefer to word it slightly differently - have a paid service that offers a free ad-supported version.
The danger, of course, is that once you separate it out like that you quickly realize that the advertisers want the paying customers, not the freeloaders and so ads encroach on the he payment plans, too.
The danger, of course, is that once you separate it out like that you quickly realize that the advertisers want the paying customers, not the freeloaders and so ads encroach on the he payment plans, too.