In my mother tongue there is a verb called '帮衬', which means someone being a regular customer of (a store, merchant, etc.) of another person to support her business, satisfy their own needs and save money.
Is there any similar behavior in your country in which someone regularly go to a shop(or other commercial place) and consume? in order to support that shop, enjoy the needed goods/service and save money. (he regularly___that shop because the boss is nice, the goods/service is of high quality and the price is reasonable) .
What do you call that behavior in English?(it doesn't necessary be a verb, phrase work well if it convey similar meaning in English.), thanks.