Nail buffing

You may have seen and heard of all the hype surrounding nail buffers, you no longer need to wear nail polish to have shiny looking nails buffing your nails instead is supposed to be easier and cheaper. So no more splashing out on expensive nail polish? Could it be true can we really say goodbye to all the different types of nail polish meant to shine and nourish nails? Well I have used them and know of many other people who became fans too so what's the verdict?