Does it matter what kind of baby carrier I get?

Right now I have the sling but Brielle's about to outgrow it and I wanted to get her a carrier where she can sit up on my chest. I'm kind of strapped on money but if I were to get one of the cheap $30 ones, would it give me back pain? I don't want to waste the money on something cheap if I wont wear it because it hurts to so I guess I'm asking about ya'll's experience with the cheaper baby carriers.

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    07/03/14
    You can sit her up in the sling-look for videos on YouTube on how to do it safely, I can't explain it lol. I could show you...But Texas is a long ways away from South Dakota. :D I found my instructions on YouTube and the website I got the sling from.
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    About Kelsee
    Born: Grand Prairie, Texas
    Current: Grand Prairie, Texas
    Birth: October 10
    On Moms.com since: Mar 16, 2014