Printing size and price

Hi everyone, I need a little bit of help here.

I just uploaded a model and I can't figure out if the size is appropriate, the numbers look good but it's a little bit too expensive and when comparing to other models I get even more confuse.

This is my model, it should be about 11 cm high(it is hollow).

But then this one is 4cm high? Isn't it to small?

Can someone tell me if I'm doing something wrong here?

What's wrong with your link? can't even get the dimensions of your model..cost is also dependent on the material chosen..

I already got the answer i was looking for, ty anyway