Fit and construction of the garment are two important things to look at. Quality does not always mean expensive. A great basic dress can be "dolled up" by you. Beaded, jeweled, laced. You can do that. Just make sure it fits you well, and the construction will withstand you moving around and tugging at it all day. Just remember a Chanel suit can look like a dish rag if it doesen't fit correctly.