I signed up for the draft literally months before the war ended, so I never entered the military. However, my brother was an A-4 pilot, a good friend an F-14 RIO, My father-in-law a CWO4 on a carrier, and my son has returned from his second combat deployment (headed out on his third this fall).
I have the highest respect for those that have served (and are serving) in the military, and could I do it all over again, I'd enter the service.