That's a good question, and I'm sure people go either way on this. I for one am definitely looking for success, but I try to find it by doing things I like and care about.

I'm comforted by Paul Graham's thoughts on this, namely that if you build something people like, you'll usually manage to find a profit somewhere.

Success is success. The details are secondary.

this attitude doesn't prevent successes, but it does lead to unnecessarily high failure rates