A cautionary story, and indecision.
I have purchased tires from tirerack.com a number of times.
In November 2015, I purchased 4 Continental tires from them. When they arrived, I was dismayed that the DOT date code was 0414, meaning the tires were made January 2014.
So, the tires were already about 21 months old, though never used. After some back and forth, they discounted the tires by another $50.
As I mentioned in a previous post, the tires will be 10 years old, look great, and have loads of tread left. On the other hand, they've only been in service for about 8 years, and the car is garaged daily.
Lots of opinions on 6, 8, or 10 year replacement intervals, heat and UV effects, and whether non-mounted years count. Replacing them (with installation) with the same quality tire will be $750 using tirerack again, IF I pull the trigger before the rebates end Nov. 30th.