It's an interesting and valid question. The basic idea behind today's New York Times article is people, especially young people, are choosing to text, email, or tweet information, rather than leave a voice message. And it turns out, it seems a growing number of people aren't even bothering to check voicemail anymore.
As anyone who's left me a voicemail message can attest, I definitely neglect those messages. Often, if I call someone and they don't answer, I'll hang up and email or text them rather than leave a voicemail. This method actually takes longer, but I don't think I'm alone in this habit.
Visual VoiceMail on the iPhone, touted in the NYTimes article, has actually made it worse for me. Previously, I would call in to find out who those three new messages might be from. Now, I can simply look at the phone, see who it is, and I'll have a pretty good idea what they're calling about.
What do you think? Are the days of voicemail numbered? Which communication method has replaced voicemail for you?