Straightner for only about 100 bucks?

Ok so the last two years Ive been using a 15 dollar straightner from walgreens, and it doesnt even straighten my hair anymore. I wanna get a top of the line one, like (chi, ghd, royale) I wanted a royale reallyyy bad but there 200 on the website and thats alot :/ whats another rreally really good straightner just like that one for cheaper? maybe around 100?? thankyouu!