No no no. Never buy any diary product (or any animal product, for that matter) in a normal store, because it will be made from pasteurized + homogenized milk, and the animals would have been fed an unnatural diet of grains and additives so the food will have far fewer vitamins and minerals, but especially it will be missing the very important fat soluble vitamins (A and K2 mainly). Proper diary from grass-fed animals has a great abundance of fat soluble vitamins, and also many nutrients you won't find in grain-fed diary like conjugated linoliec acid, and the "wulzen factor". If you're going to eat animal products, go for the best quality you can find. Anything else in a waste of your money and harmful to your health. You can't even absorb the calcium from pastuerized diary, so why do people think its good for their bones? Pasteurized diary is one of the leading causes of osteoporosis and other bone problems.
Speaking more generally, diary has major problems associated with it even if it is cultured. Goat's milk alleviates some of those problems, but not all of them. There's lots of other ways to get the benefits of cultured foods in your diet without the extremely harmful effects of diary consumption.
I like fermented "sprout milk". Blend the sprouts w/rejuvelac and ferment them for around 12-48 hours, depending on the temperature. Nice and sour and teeming with beneficial bacteria + yeasts. Makes a good substitute for the whey called for in many fermentation recipes, too.