When I buy basic clothing such as a plain v-neck tee, I want them to be in good quality enough to last me awhile without buying a new one every now and then. Uniqlo sells exactly that: quality basic clothing for both men, women and children. I used to buy my basics wherever it is cheap but then I realize the cost per wear justifies enough to get quality basics in my wardrobe. I really love Uniqlo v-neck cotton shirts enough that I have a couple of them in different colors. I have them for a couple of years now and they still look in top shape without having to baby them with care. I also recommend their heat tech collection for the cold seasons because they really do keep you warm without bulking your style. I can only vouch for their undershirts from that collection though. I find their heat tech socks for women don't last during winter because I had holes in them after three months of use. I don't know if the problem is within my boots or if the socks have a poorer quality material, but I definitely won't be repurchasing those.

Side note: Even though Uniqlo is a Japanese brand, not everything in the store are made in Japan unlike Muji (a household lifestyle store).