I think, its about risk and return tradeoff rather than taking challenges... A business should take risks as the more risk you take, the more return you may have. But, risks should not be beyond one means... For example- a group of friends could have a website and from that, can tell different aspects about different mobile phone vendors and their products features. Now if a reputed cell company who renders quality product to the market will definately be eager to promote his product from this site, as many see this site and the site will not say against it, as it is a proven product. Now, this requires very few amount of capital but can easily bank money. At this stage of live where we students have temporary flow of money, should be doing these type of short entrepreneurship stuffs to gather knowledge for big entrepreneurship.