Discussion Regarding "Contextualization"

Contextualization is one of the buzz words for church leaders these days.  As I understand it, American pastors are seeking to contextualize themselves into American culture in order to more effectively communicate the gospel.  I have a hard enough time fighting off the influence of our dead and dark culture, but so many others are embracing it, in order to try and reach it.  Obviously isolationism is not the answer, but at what point does this effort to repackage the gospel cross the line of being unbiblical?  I would like to have some conversations about where to draw the line with contextualization because much of what we see happening is simply worldliness (a word we don't use anymore) in a new generation.  Dr. David Sills in his book "Reaching and Teaching" offers these helpful words, "Some people mistakenly believe that contextualization means changing aspects of Christianity to make it look like the culture, but contextualization is simply the process of making the gospel understood.  To ensure that our hearers understand the gospel, we must use their language rather than our own, if ours is nonsense to them.  However, this does not mean that mimicking the profane vocabulary or lifestyles of the unchurched is an appropriate use of contextualization.  In fact, much of what many call contextualization is simply an effort to be trendy and edgy.  It may be effective, it may even attract a hearing among a certain demographic, and it may not be offensive to all hearers, but that is not contextualizing the gospel; that is marketing."