Got them from our local shop plus 20% off. Yes it has a 6 months durability warranty.
I was struggling this months finding shoes for myself since I bought 3 pairs 2k10 that I have in rotation and 2 are gone.
If you are fan of the 2K10 like myself(wide toe box), you will be please with the air max cage. Very wide toe box and very comfortable. The sole is thick like a truck(not like 2k10's), but still feel soft and very light in the feet.
Nike is in the right pattern making very comfortable shoes lately. I even own 2 Nike running shoes, the icarus and the pegasus and beat all the asics I own before. Seems they are putting the same effort in the "Tennis department".