I'm partial to the idea of having a twitter. To me, twitters are just 140 characters of useless information. I don't need to know that you're taking a bath or got a new pair of slippers. Yet, tweeting may be more relevant to someone for PR and business purposes. While many people continue to hate on Lebron, we can read his tweets of taking little Bronny to his first day of Kindergarten. How cute is that? Doesn't seem like such a bad guy after all, which works in his favor.
I think twitter is also in respect to developing one's career. One of my friends really wanted a job at a certain magazine company so he tweeted to their senior editor numerous times, eventually getting the opportunity to interview there. Having showed initiative and enthusiam for working at the magazine through tweeting and having a great interview, he was hired. I find it amazing what an influence twitter can have in accomplishing career goals.
However I am still on the fence about getting a twitter. I find some of my friends twitters quite amusing, while I find others extremely annoying and narcissistic. What would I even tweet about? Who would I follow? Actually, I would probably follow Aziz Ansari.