Wedding cakes don't just come from high end bakeries anymore! Cakes these days can be made at home, or like the ones above, come from supermarkets. (Of course some of these came from high end markets!)
Love the cake with the ribbon flowing down the side from Fortnum & Mason! The cakes above came from Marks and Spencer, Watirose and Fortnum & Mason. Prices vary.
This trend is not just something happening in the UK, but you'll find wedding cakes in most supermarket bakeries in the United States as well. A quick visit to my store's bakery showed a simple three tier cake running about $350.