Everybody's different on that front. We all have to figure out how much we're willing to sacrifice something, be it "freedom", interest in work, happiness, time, etc. for our paycheck. I think the interesting thing is that people's view here definitely changes over time.
My corporate job for five and a half years after college offered amazing cash flow and other perks and I didn't feel like I was sacrificing anything. But eventually I felt like the pace at which I was learning slowed down too much and I knew I needed to make a change. With the nest egg I had built up over the years, I knew I could quit without sacrificing a ton.
Starting Keen was one of the best decisions I've ever made. Do you think your opinion will change in the next five years?