Where does it end

The cost of communications these days seems to being going up and up and up. Conceivably, you could easily be paying for 3 internet services a month or more (home, phone, and iPad). Now, there are more and more "free" services starting to charge for content. Yes, I realize that each of these is a choice, but how much money are people really willing to shell out each month for all of these services? And does it make sense?