We all have to admit it. Network is important for one to succeed in business, in addition to raw talent and a great product. I'm not saying you can bypass the second two factors with just a network, but with a strong network, it only helps. Someone can help you introduce the product to the world and someone very smart can give you great advice, if you don't fool yourself into thinking you don't need mentoring from some of the best in the industry. I've learned a great deal by seeking advice from these leaders. I wasn't completely sold on a MBA before coming to GSB and that's why it took me longer to come than average classmates. I almost didn't come, with the same perspective you may have. However, having spent 1.5 years here, I think it's really worthwhile even though it used up all my savings prior to business school (yes, it's expensive). I did actually learn valuable lessons from many industry veterans who are sharing their many years of learning with us about sales, marketing, management, finance, entrepreneurship, VC, etc. Believe me, I'm a stronger believer in learning from doing it, as I'm currently building a business while in school. However, the learning and mentoring I receive is phenomenal to complement this and the network is extremely valuable.