But along with advantages it has lot of limitations. This design is not at all suitable for enterprise level portals. Cannot accommodate much of content. Lot of people are not ready to accept the design for serious corporate websites. It is also not suitable for news websites or for magazine websites. Sometime single page is treated like landing page and not as a complete website. For every industry there is certain designs which suits them more and they want their designers to be creative within that boundary.
But at the end we can say it fits best when it matches the requirement and in future we can see lot of single page websites with very unique and creative designs. This ever-changing web have lot to offer to its users and designers and developers are working day and night to attain that.