I've bought $50 tires at Walmart before. Were some of the best tires I had ever bought. I've bought used tires before too. Just have to look them over real good.

Last week I bought about the cheapest set of tires my Walmart had for my truck. They had good ratings, they ride smooth and have great grip. For me it depends on the vehicle. My truck is 17 years old and has 215k miles. It's slow and I don't drive fast or stupid so it works. These tires will probably outlast the truck.