Mitt Romney just did a press availability and gave a revealing answer when asked about his problems exciting the GOP base.
It's very easy to excite the base with incendiary comments. We've seen throughout the campaign if you're willing to say really outrageous things that are accusative, attacking of President Obama, that you're going to jump up in the polls. I'm not willing to light my hair on fire to try and get support. I am who I am.
So, sure I could excite these people if I said a bunch of crazy stuff. But that's not how I roll.
On the merits, it's hard to question the essential logic. But it's a funny thing to say when you're still actively trying (and arguably failing) to get those voters enthused for your campaign.