Science has yet to isolate the Godiva Chocolate or Prada gene but that doesn't mean your weakness for pricey swag isn't woven into your DNA. According to a new study of identical twins it's less TV ads or Labor Day sales that make you buy the things you do than the tastes and temperaments that are already part of you at birth.
If you start to disrespect the character you're playing or play it too much for laughs that can work for a sketch it will sell some gags but it's all technique. It's like watching a juggler - you can be impressed by it but it's not going to touch you in any way.