Scale

Collectable figures tend to come in different scales. 1/6, 1/8, 1/10 or 1/12.
This must be understood when buying and factored in when considering what you're getting for your money.
Scale is weird.

A 1/12 figure is about 6 inches in height.
A 1/6 figure is around 12 inches tall.
But what you have to factor in is 'girth'.
Scale occurs in 3 dimensions; so a 12 inch figure is not simply twice as large as a 6 inch figure.
It is larger in 3 dimensions.

If you compare S H Figuarts Black Panther with Hot Toys Black Panther? (See pictures).
The Hot Toys figure costs twice as much but you get more than twice the S H Figuarts figure.
Make sense?

Compare S H Figuarts Injustice Armoured Batman with Hot Toys BvS Armoured Batman and again the difference is clear.