I'm not sure anyone is saying there's an extraordinary profit margin being made. But if you're the dominant supplier in some niche and your customers don't have

I'm not sure anyone is saying there's an extraordinary profit margin being made. But if you're the dominant supplier in some niche and your customers don't have any real complaints, you can still make a lot of money and, as a potential new entrant, your niche probably doesn't have a lot of appeal to me unless I have a genuinely new idea that would have broad customer appeal and I can execute on it.