It matters to some people. Or, at least, it matters to me. The less data that is being phoned home, the more comfortable and happier I am.
In this age of Big Data, when it's relatively inexpensive to weave together a large number of small data points to come up with an overall profile that is truly invasive, I have to consider every byte that is sent to be a risk, and to be avoided when at all possible.
There's also the question of autonomy. I actively resent data collection without my informed consent. Companies that do this are, in my opinion, being abusive and infringing on my right to autonomy and, to a degree, to have control over aspects of my existence that matter to me.