As far as the implication that conservatives are richer than liberals (because, yeah, Central Park West and San Francisco are bubbling over with conservatism), I'll refer back to my blog post on this issue last summer:

John Kerry, the 2004 Democratic presidential nominee worth $188.6 million is easily the richest lawmaker, outpacing Republican Darrell Issa by more than 10 percent. Of the 12 richest lawmakers, only 3 are Republicans. Drill down a bit further, and it evens out -- Republicans are 23 of the richest 50 according to The Hill.

Other data points:

• Wealthy Individuals Voted for Obama: CNN reported about election 2008: "High income voters -- those who said they make at least $100,000 a year --went in Obama's favor, 52 percent to 47 percent."
  
  
• Wealthy Counties Voted for Obama: American's richest county, Loudoun County, Va., voted Obama 54-46, thus being more Democratic than the rest of Va. and the nation (which were both 53% Obama). Fairfax, Va., the nation's second-wealthiest county, voted 60% Obama.
  
  
• Wealthy States Voted for Obama: The three wealthiest states -- Maryland, Connecticut, and New Jersey, all voted overwhelmingly for Obama.