Is the PhD for Me?

Ironically, as soon we began this blog, I started to question whether I really wanted to go for the PhD.  I am wrapping up my third year in my current position and it is clear that I'll need to make a change soon.  At first I thought that enrolling in a doctoral program and furthering my education was the answer, but I'm wavering about that decision.  The fact that I'm wavering tells me I'm not ready.  A doctoral program requires total commitment and I clearly don't have that yet.  Looks like my posts will be the alternate perspective: what do you do if it isn't your time to go for the next level of education.