Normally 3.49 for 1L.
Both the normal version and the pineapple version are on sale. Flying off the shelves in my local waitrose.
You can get cheaper brands but they are bulked up with water, sugar and sometimes contain preservatives. The grace brand at asda is normally cheap compared to full price coco vita, as are thai brands from asian supermarkets.
If you miss drinking these fresh from tropical countries this is a nice way to enjoy it.