Definitely agree ninetenel. I tried to emphasize in my blog that I have chanced into a really great, low-risk situation to quit, and it's still really hard to drop everything to give it shot. I am envious of your contentment with a job at a larger employer, having experienced both, a startup is definitely not the most fun option. It's hard, likely to fail, demanding, always-on, and otherwise irrational. I think I just caught the startup bug the first time around. :)