At least with medicaid and Obamacare you're spending a good amount of money on future productive citizens or current productive citizens.
Medicare, as you all may know: http://en.wikipedia.org/wiki/Medicare_% ... _States%29
...is an entitlement which allows unproductive citizens (who can't pay for themselves) to live longer and longer, thus costing more and more. It's pretty much a cash transfer from the useful to the useless, prolonging the already too long lives of the useless. And the better the program works at keeping the useless alive, the worse the financials get. Pretty horrific design where zombies vote themselves more life at the expense of the truly living.