Andrew Sullivan tips us to this quote published in Mother Jones:
When Gingrich was campaigning in Laconia on Wednesday, a fellow came up to the former House speaker and asked, “Won’t you buy a home in the Lakes Region if elected president?” This was a reference to Mitt Romney’s house in New Hampshire.
Gingrich replied, “No, I can’t afford things like that. I’m not rich.”
As author David Corn points out, Gingrich declared a net worth of $6.7 million this past summer and had income of $2.6 million in 2010. And we cannot forget his Tiffany line of credit of $500,000.
In fairness to Gingrich, I do not think this level of obtuseness is unique among the Republican candidates. After all, Mitt Romney was willing to bet casually $10,000. More fundamentally, however, this is a group that thinks the rich are taxed too much and the poor not enough. I do not think that a single Republican candidate has proposed a plan that would not reduce taxes on the rich, with the lost revenue being made up by the middle class.
Tom Noonan 
Like most “wealthy” people, Newt probably has his money tied down and up in various investments. He doesn’t have $6 million sitting around stuffed in a mattress.