Do you prefer selling low-quality goods with great returns or good-quality goods with less returns?

Selling low quality goods with high returns will be more profitable on the short term only as it will have a negative feedback on the overall business eventually leading to less profit than what could have been generated out of selling good quality goods with less returns  

about me the best make mix between2 items to get best and more benefit

There is no health economic logic in preferring to sell low quality goods with grate return, because You can sell them only once... There is no chance to sell sell low quality goods with grate return on long term, because the market has its own mechanism to eliminate... And selling high quality goods with less return is typical for the market penetration phase, and during the time the returns are getting bigger and bigger if the real and quality strategy is used!

good quality products is better because you have customers will back to you later , so i cant make them hate me and lose them .

Good Quality Product with Less Returns - this will help to sustain the business in longer duration.

This is what the success manthra of business and TVS group is one of the best example I have seen