These tires (all season) have about 40% to 50% of the tread remaining and are very usable. I think I paid about $300 for each new.
Michelin Latitude Tour HP
Free for pick up in Montomery County Maryland.
I switched to Pirelli Scorpion Ice/Snows for the winter and have one more summer season left on the Michelin Diamaris', I don't need these tires.
What I need is more space for other "stuff".