Umm... I don't care who Lance Armstrong was, I didn't know/care he was sponsored by Trek and I still got a Trek bike.
It came down to the fact that I went to 4 stores in my area, test rode several bikes from a couple brands and it came down to the fact that the Trek was the one that fit my needs/wants and was in my price range. Plus the staff at the store I bought it from were friendly and very helpful.