Competition ensures better quality of their items that will help the consumers meet their demands on that certain product. That is why it’s always a good scene to witness a healthy competition in all types of businesses, as that will only prove which business will have more to show, and which business will just stop there and quit. Maybe there are some businesses who also just got more luck than others and they last longer compared to others.
Competition increases the quality, and decreases the price, that is why it is always good. Of course, it should be at a legal level as well. Just to give an example, these days Amazon can sell any book they want for as cheap as they possibly can, right? That is amazing for the readers, that means thanks to Amazon we can now buy books for cheap, and if we want to, we can resell them with some loss instead of just putting it on a shelf.
However, that also means destroying all booksellers as well, we don't see too many bookshops in the world these days, do we? You need to make sure that while you are helping one, you are not destroying the other, that’s very sensitive.