The problem is that most people vote for charisma as proven in the last election. America got the government it deserves. Simply put very few Americans could follow Paul's arguments no matter how brilliant. We simply do not have the civic or historical background anymore. That is why we vote for 'The guy we would have a beer with' - GWB, 'The guy that gives us hope' - BHO, or a Charmer - BC.
The only politically viable option for conservatives is to find someone with Paul's commitment to a constitutionally limited government but with the charisma of Reagan, Clinton, or Obama. Reagan was great because he 1) Believed in America - Gave us hope, 2) Knew how to speak and hold your attention - Charisma, and 3) Believed in limited government and Constitutional principles which for the most part he held to. If you want to look for a successful candidate in 2012 look for these qualities. Oh one more thing - Make sure his/her record backs up the rhetoric if you want to avoid a surprise.