I have noticed that but also missing are the plethora of campaign buttons and bumper stickers as well as all the literature that I used to find.
At least perhaps in the case of Obama where he was only able to raise 150 million last month, perhaps it's a financial issue. OR
Maybe he is saving that money for part of his re distribution plan

Does anyone aside from myself find it totally reprehensible that over $1 billion dollars is being spent on this campaign?