The issue isn't that John McCain has seven houses. We know he (or his wife, at least) is rich. The issue is, that McCain has tried to paint Barack Obama as an out-of-touch elitist, and yet McCain himself seems to have forgotten how many houses he has.
Oh, and by the way, wasn't there a stink made about how many houses John Kerry had long about four years ago? Mmm hmm, thought so.