Peter Moskos outlines his problems with Libertarianism:
I’m not fond of ideologies. I don’t like it when people have answers before they know the question. So why shouldn’t libertarianism be dismissed as just another ideology. Perhaps less government is the solution to many specific problems. But I refuse to believe anything is the solution to all problems. I’m willing to accept (or at least debate) libertarian positions on any policy issue. I’m not willing to consider libertarianism as the Correct Ideology.
That's roughly my position as well. I am essentially libertarian on many questions, but I still regard myself as a conservative, in as much as I am, before anything else, against ideology. I believe in a distinction between theoretical and practical wisdom; and I believe we live in a complex contingent world in which prudence is our only real constant.