This place you mentioned really doesn't exist in Yanji City. Take a look and I'll analyze it for you:

Department stores are expensive, and the after-sales service is good, but the quality of waiters needs to be improved.

Qiansheng Shopping Mall is cheaper than department stores, but the quality is hard to guarantee, and the after-sales promotion is not as good as that of department stores.

New Century Shopping Plaza is cheap, with average quality and after-sales service.

So generally speaking, there really isn't such a place as you mentioned in Yanji. It's a city for the aged, and most of them are old people and businessmen. Do you think good quality and low price are popular?