Does concept of "trendy" exist in suburbia?

Our "what is the next trendy Chicago neighborhood" asks a question that keeps speculators and realtors up all night thinking about. Gentrification can take place in any area...even ones without blight that suddenly get "hot" and the nature of their mix of stores, clubs, bars, gyms, etc., begin to change. But does "trendiness" stop at city limits? Is there trendiness out there north of Howard or west of Austin? Can suburbia generate "trendiness", places that get hot not because of their location on the fringes of the metro area as row after row of houses go up on former cornfields, but smack in the middle of the most established communities in suburbia? Does suburban Chicago have the ability to generate a trendy setting within itself or is that something that requires a true big city and true urban lifestyle to accomplish???>