The point is his record contradicts his words. He’ll say whatever he must to get elected. When he had the chance, he instituted gov’t mandated healthcare, banned guns, and other intolerables. Record > rhetoric.
The point is you said he sounds like Obama. He doesn't. Regardless of whether you believe Romney, what he says sounds good. Compare that to Obama; he can't even say the right thing. So, if you take what they say and move three notches left to what they do, we're still better off with Romney. Plus, judging by history and common sense, you would have a lot less likelihood of vetoes coming from a Republican president of Republican bills than a Democrat president. A Democrat president pretty much kills any power a small majority Republican congress has; especially with a president willing to cross the constitutional line on authority.
You say Romney is just playing politics to get elected by saying what he says. Fine, he will still have to play politics while in office. And part of that will be at least somewhat appearing conservative. You won't get that from Obama. Which base would you like to see placated? Plus, Obama wouldn't have to give a rip about re-election.