Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Terrible quality, overpriced

As a classroom teacher, I need a reliable, high-volume sharpener. I spend about $500 a year on supplies and really want to get value. I remember using the hand crank model in school as a kid and never having a problem, back when quality meant something.This X-Acto model is great -- from August to December. It then gradually gets worse and worse and finally gives up the ghost around spring break. Our team al had this sharpener. Every single one broke down. They are no good, period.X-Acto sells replacement blades, but they cost north of $20 -- with shipping, that's nearly $75 annually for a shoddy sharpener.I now haunt garage and estate sales, looking for 30- or 40-year old models. They outlive the X-Acto every time and provide a better point, besides.