The demographic reports are in ... From the looks of it , we're going to have to re-evaluate some of the content for our promotional events in different venues .   Why , what's the lowdown ?   According to the report , our Boston crowd is quite different make-up from our Chicago folks . Our Boston consumers are mostly from mid-level to upper-class income levels , university or postgraduates , married no children , white collar ... You know the kind . Chicago on the other hand is mostly mid to low income levels , single parent homes , blue collar ... I think we're talking about two totally different target groups . 