How much do heels cost?

I want to buy my first pair of heels soon. I am not going to buy those gigantic heels, I am going to buy kitty heels, dolly heels, or stuff like that. How much should it cost? I went online to random online stores, that sell heels, to see the range it cost. But the priced varied a lot, from 10$ to 80$. I want to know so when I go to the mall, I know how much money to bring in.