The fallacy you are jumping into bed with is called "False Dichotomy." This is not a binary choice, all or nothing. There are varying degrees of spending, you know. I'm not saying "spend everything you have." I'm saying "spend what you need to."
1) Don't be a dope.
2) Don't call me one, either.
The point is that Romney doesnt need to, as the issue is a dud with no rabid press assist, in fact with several outlets actually calling O out on it. Also with no major interest from the public.
Obama gets to spend 100 million to make noise to promote a “controversy” that will evaporate. Romney keeps 100 million to use when it is more needed.
Makes for lousy talk radio chatter? Yep, but it makes more practical sense.