Why quicksort is more popular than radix-sort?

Question

Why quicksort(or introsort), or any comparison-based sorting algorithm is more common than radix-sort? Especially for sorting numbers.

Radix-sort is not comparison b

Answer 1

One obvious answer is that you can sort arbitrary types using quicksort (ie anything that's comparable), while you are restricted to numbers only with radix. And IMO quicksort is a lot more intuitive.