Today I spoke to a collogue at work and found out that he got accepted for the Top Business School in Europe. The Fees for INSEAD Business school is 80,000 Euros which is not including accommodation and travel from his home country. My ambitious and smart colleague is 35 and hoping for a career boost with his MBA. I asked him, why not invest your £80,000 savings in 100% stock portfolio to grow your wealth? Lets break down the figures.