It’s no secret that many anti-establishment Tea-Party and/or libertarian conservatives don’t like Mitt Romney. Still, many are so fed up with Obama that they seem to be searching for reasons to justify voting for Romney anyway.
One oft-cited reason has to do with the Supreme Court, whose justices tend to be reliably “conservative” or “liberal.” Since they serve for life, it’s a pretty big deal when a President gets to appoint one, and he generally tries to appoint someone who fits his ideology (assuming he can get the current Congress to approve the person). I’ve seen conservatives who don’t like Romney say they plan to vote for him at least so he can appoint conservative judges.