Limits on "Christian" Drama?

Christian Drama, Drama Ministry, Church Drama, all these titles bring up an image in most peoples' minds. Christmas plays, Easter pageants, children with bathrobes and pasted on beards. We have learned that even though the message is sacred, the method isn't. Churches and other ministries have learned that the dramatic arts go a long way in putting the Gospel in a form that people understand and relate to.
I confess that I used to be a bit of a snob in terms of what should be considered drama ministry. I believed that it all needed a message and should lead to an altar call. I looked down my nose as I drove past the local church that was producing a secular play.
I don't remember exactly when I began to soften on that stance, but I came to realize that we can reach people in ways that a Sunday sermon can't. People who will never enter a building branded "Church" will come out for night of entertainment. The message may be subtle, or may be absent altogether. The goal of our evening of entertainment may be simply to build relationship with our community.
We perform a monthly show called Saturday Night Life. It's a night of dinner and primarily sketch comedy with music added for good measure. We don't do a traditional altar call, but we invite guests to come back and visit our church on Sunday. We have a significant number of unsaved, unchurched audience members each month. Some have started attending church as a result, and some have accepted Jesus as their Savior.