Being a recent buyer, I have a fresh perspective. (as one of the "older" purchasers, as mentioned)
Although I specifically wanted a convertible, the second thing I searched was mileage.
The year was less critical because of the notorious long run of the 370Z.
It was after I purchased that further due diligence revealed that 2012 and later had the tangible advantage of an oil cooler.
However, I'd still buy a 2010 with extreme low mileage over a newer model with substantially more. Adding an oil cooler is far easier than rolling back 50 thousand miles.
My motto is a car doesn't last a certain number of years. Instead, it last a certain number of miles.
17K is not a reach.
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