What do you think of single page websites?

The simpler the better. In IT, in general, it's all about simplicity, so a solution like a SPW will be well received. But, has everything there are cons and limitations. I would say the this kind of WS is good for displaying info like a portofolio WS, but if want to make a webstore this approach will not work as well. Imagine the UX/UI, the querys to the DB, the site will became cumbersome.