Blogspot or Wordpress When Profiting on Quick Trend

Let's say Arnold governor of California has cheated on his wife and the news is broken and you want to put up a quick site to get some opt-ins or quicktraffic to an adsense filled site. Would you just buy a domain and setup a wordpress blog or splash page or setup a quick blogspot with keywords in the domain name, because you know it is only a temporary traffic surge?? Let me know