I think we're not yet at the point where supermarket-bought products are on par with price, but we are on par when it comes to restaurant/fast food chains.

Every vegan/vegetarian food that I try from the likes of McDonalds is surprisingly good and costs about the same as the meat equivalent. In London there is also a fast food chain dedicated to vegan food (Neat Burger), it is fairly cheap for what it is and tastes amazing.