just hit 56,000 miles on my 2013 maxima and the goodyear's rsa 245/40/19 still have 5/32 left from 11 or 10/32.... and ,well they are now 6 years old and even thou not that good on the wet ,just got 4 more to replace mine in about 6 months ...got them now due to a deal at $ 568 includiing the $60 debit card they sent me .... i will not mention the name of the and not from my usual tire rack....they still had them at over 900 landed . so as they wear down if ever will replace them with the new ones

 

Great deal on those tires, that's about what they are worth.. beats the grand I spent on my Michelin PIlot Super Sports... .

 

Had Kumho Ecsta Platinum on a 2002 Maxima (for more then 50k miles and 6 years of driving and still had great depth of tread) and now on my 2009, replacing Goodyear RSA and there is already a huge difference in smoothness, ride quality and steering feel (I bought the 09 with 2 ok RSA's and 2 mid age ones). RSAs were mushy, vague and noisey.
$116 a tires for the Kumhos is a great deal imo.
I kept rotation the Kumhos x pattern every 5k miles for the life of them on my 2002.