As I mentioned earlier, cbenson4's post is actually a great definition of a hobby jogger's rationale for him thinking he is not one.
If I play chess or Scrabble for a couple hours a day and pay money to occasionally attend events put on to bring other like-minded people together, is it not still a hobby? Have I become too awesome and "serious" for that?
I really like cooking. I've taken classes, cook every day, and even cook for friends. I'm a better cook than any of my friends and I study it to no end to become better. Is it any more than a hobby?
You see, cbenson4's derogatory description of a hobby jogger works for you because it strengthens your reasons why you certainly aren't one. It makes you feel superior, because you are a "dedicated, competitive runner." How DARE someone call you a hobby jogger! Errr, except you are one. So am I. I've been a full time race director, taught run clinics at the local run store, been on the national collegiate XC team, all that stuff. I have a bookshelf full of every major run book put out during the past 15 years. Bought the hardcover version of OAR the day it was re-released a few years back, after suffering through the illegal PDF version I downloaded and printed. Got up in the middle of the night to watch Geb beat Tergat in Sydney in the 10,000m. I'll talk about running all day to anyone that will listen. We're all similar. That's why we are here.
I love running. Just like you. But it's a hobby, and a cherished one. Nothing more. What's wrong with that?