Well, the price will be different depending onthe size (of coure) but for my saturn 195/60HR15 BF goodrich HR4 all season tires were about $55 each. The treadwear rating is at least 300, probably 360 I don't remember. But, these things barely wear out, I've beaten on them and they hardly show any wear. The wear rating is only consistant within a manufacturer's line, you can't compare a 300 from one company with a 300 from another.
And the heat and traction ratings for this tire are both A, maybe a double A for the traction (some new tires have the double A rating because they have improved performance as tire technology improves).