Actually, to be honest, I don't know if I regret building it, really. Sometimes I find it comical that it has been such an enormous distraction, but it's also been very educational and rewarding, and probably much more of a success than my writing would ever have been.
I do regret not managing my time more effectively. I wish I had dedicated more of my time to writing. But in truth, I probably used bug-fixing as an "out" when I had writers block, or was unhappy with what I was working on. Because of that I improved my coding skills, but my writing skill stagnated, and even regressed a little.
