Most of the products and companies have a humble beginning before they become big! Can you name an Indian brand which started small and became a billion dollar brand? Well there is not one but there are many.
Lesson for investors: Before they invest in a particular company they should check out their (companies) products and competitors products. They should also check out for the level of innovation which the company undertakes. The current demand and acceptance of the product doesn’t say it all but the future demand will determine the price of the stock in long term, hence the analysis should be done on a long term basis.
I came across an interesting Infographic on Forbes which states 10 product ideas which are worth billions now: