There's the occasional faux-shock about how much money is spent on politics, especially presidential politics. I'm not especially disturbed by the numbers. Hiring a large full time nationwide staff for a couple of years costs a lot of money, as does all forms of advertising. We can be concerned about the implications of that, but the numbers themselves don't really bother me.
But left out of the discussion, usually, is that campaigns help make a nontrivial number of people quite wealthy. Sadly, not me!