Hard to tell whether we're talking about the caller... or about Suze...What I figured (could be wrong) while watching her was that she has built her self- worth (and somehow raised her above what she felt about herself and above other people) by surrounding herself with pretty expensive things. Giving up these things are out of the question since her whole self-image and self-worth is wrapped up in it. I don't think this is that uncommon although people usually aren't as delusional as her.
Hey, maybe she could advertise cars for GM again and solve at least two economic problems with one fell swoop?