Once it was very common to have plates on the walls in Denmark. There was hardly a home in the country that did not have plates on the walls. It was very prestigious as plates were much more expensive at the time.
Today the plates are not as much a show of wealth as an expression of personal style and ability to decorate your home. After a long period with very minimalistic design people want some life returned to their homes and many have started to use plates due to their versatility and great diversity in motifs. - In my personal opinion plates should first and foremost be used for decoration and joy. - You can use them as wall decoration, for plates on the table, make them into a cake stand or buy a plate rack and set them as decoration.
Plates from producers like Royal Copenhagen, Desiree and Bing & Grondahl are of the highest quality, both technical and artistic! - In fact of just as high quality as blue fluted porcelain.