Why people buy "OPPO" or "VIVO" Phones?!

OPPO & VIVO These 2 Brands are Actually Dominating in India for their Famous Phones like Oppo F3 and F3 Plus (This company is usually known for copying Apple #Pun) and other vivo phones. Why do they even sell ? And why do people even buy them? There are a lot of good phones in that same budget like Xiaomi Redmi Note 4 and Nokia 6 or Moto G5S Plus. Mostly people who buy Oppo phones are offline buyers or purchasers who don't have access to Internet or does not trust Online shopping (Yes this type of people still exist in 2017) Or cause of the OPPO's & VIVO's strong marketing in India. So, they don't know about other smartphones and they end up buying Oppo Or Vivo Phones. But they actually never think of buying these Brand's phone. They're manipulated to buy the phones of Oppo & Vivo by the salesperson, whenever the purchaser goes to the shop to buy a phone they'll usually ask "Which phone is the best?" The seller will definitely show them "Oppo or Vivo" Phones ! Why does he do that? Why he only show's the phone of Oppo at the start? And not any other good phones like of Xiaomi or Moto? The reason behind that is the seller gets more profit by selling oppo's phone cause the amount of commission given to them is more than the amount of commission given by other phone brands and there are more treats for the seller if he sells Oppo Phone's. I'm not saying the Oppo phones are worse, but their UI (User Interface) is almost a look a like of iPhone, their after sales service won't be as good as other well-known brands. They won't even promise to give the software update And how will the phone perform after 6 months or so. These things makes the Oppo and vivo phones stand behind at the end and non recommendable to others and make them bad.

                                             
                                                 - Abdulla Shaikh