It'strue that in todays market it is very hard to have an original idea, it is just overpopulated. But you can have an original approach to the same idea. That can be the difference.
I agree with you, sometimes in order to achieve success, the project does not need to invent the original idea, it is enough to improve the existing one.
You are right, there is nothing perfect in this world. So you can take any idea and make your own improvements.
Consumers will always appreciate this.