Where's the best place to buy a guitar under $80 ?

I'm planning to buy a new guitar , & im broke . So please help me find a guitar under $80 & good quality , THANK YOU ! :D oh & a Acoustic Guitar is what I'm looking for , btw , i know it's gunna suck a little but im a beginner , and I'ma first work with a sucky one , then a better one :D