Making a witness that works is not missing the boat. People who adopt Christianity because they love the lord and are truly believers are pleasing to God.
Jesus didn't belong to a church, he was a jew, and taught that there was a new way. (himself)
Different people need to be reached in different ways. It's what's in your heart that matters.
And being a Christian is cool.
Scripture makes it clear that church membership is essential to experience the spiritual growth that comes by solid teaching and fellowship with other believers.
At the same time, I don't really have a big problem with a lot of the way my fellow young people look at Christianity (well.....have a serious problem with that Jesus is my homeboy shirt...blasphemous there).
I am super traditional (attend a church that even shuns old-fashioned hymns.....we only sing OT Psalms). But at the same time, I listen to contemporary Christian stuff elsewhere (the stuff that is not trite crap), and wear Christian t-shirts.