That said, I think all three methods of communication feel obsolete and useless to me for the same reason, they're drowned out by marketing chatter. The one nice effect of the recent real estate bubble is I've effectively divorced from even using a phone. I don't even move it from the counter most of the time and don't take it with me when I leave the house. It's like 1995 all over again, but if I have it with me, it's a non-stop cacophony of people claiming to have heard from a friend of a friend that I want to unload a house.
Email is no better. Every single company I have ever conducted even the slighest and smallest transaction with suddenly thinks I want to know everything that ever happens with their products and offers. Regular mail is 99% re-fi offers from obscure mortgage providers I've never heard of.
Massive scale direct marketing is probably the worst thing to ever happen to remote communication between parties actually interested in communicating with each other, as the only practical way to do it now is pseudonymously through closed systems you never use to conduct real business with your real identity, to avoid being hounded by everyone who shares a constant contact account with someone you once gave a dollar to.
Maybe it'll force us to actually interact in person again.