I left before completing my degree, but I retain the option of returning. The lifestyle and culture of academia, the chance to do research, and the possibility of entering a research career are the advantages of academia over industry. At the time I left, none of those were as compelling to me as the career I've entered.

I'm glad I gave academia a shot, and I left not too long after I had figured out my priorities weren't well-satisfied by staying in grad school.

I am sorry if that's not very helpful. It was just a natural move for me at the time.