I think I am thrifty...wife calls it cheap...but I won't cheap out on unknown tires or brakes. There are very few things in a car that can get you seriously hurt and those two are not worth the risk IMHO. Not sure if I would even sell it like that. Way back when I had my LGT I had set of snows a guy wanted to buy off me even though one tire had a slight bubble. I didn't sell them since I had the feeling he was just going to drive on it.Mr. Thrifty isn't even brave enough to try those.
Maybe if you're selling the car?