Before Rick Perry entered the Race, Ron Paul said something interesting about why he hadn't entered yet.

http://www.youtube.com/watch?v=bSMsecpsDnA

In this debate at 05:15 in the video Chris Wallace asks a question about Rick Perry planning to run, and asked the others if he was outsmarting them by not being there at the debate answering questions.

Ron Paul's response: Maybe he didn't want to face up to the challenge for all we know.

In retrospect, I found that quite amusing.