I was enlisted active duty, got in the guard after my enlistment was up and went to college, then worked the 9-5 while staying in the guard.
I loved my job, had great pay/benefits/flexibility (sts), wife had a great job, loved where we lived, etc..
I'm now in UPT and the only thing I miss was the free time. Some days flying sucks for whatever reason, some days are awesome, but most days are pretty cool.
However, every Friday when the beer light goes on and sleeves get pushed up, I'm reminded of how awesome this opportunity is.