Given our current political process and the slate of candidates available, apathy is a very understandable choice. However, even if you're not interested in following the elections as a spectator sport, it's worth noting that whoever gains the White House in 2016 will probably have the power to appoint at least two Supreme Court justices over the course of their term, given the age and state of health of the current Court members. If that's a Republican, then it becomes very likely that the balance of the Court will swing to the conservative side pretty hard, which will actually affect your day-to-day life (if you live in the US) in much more profound ways than most of the bills that get through Congress.
So even if you (the generic you) decide to tune out until November 2016, it's still worth a trip to the polls even if that's the only issue that you care about. In the next eight years it's very likely that the Court will rule on a number of issues which are probably important to many Elliquiy members, include same-sex marriage, abortion rights, net neutrality, campaign finance reform (pretty much the only way to improve the lousy system we have right now), gerrymandering (the other big thorn in the side of the present system), immigration amnesty, EPA authority over climate change, the conflict between state and federal drug laws, and dozens more.