I'd save $5k and get the older one.
It depends on what you want, if this is a car you plan on obsessing over, only driving when the weather is nice, detailing monthly, etc. get the lower miles or else you'll kick yourself always questioning if there's something the previous owner did (like god forbid a burnout or track day) and if every rattle and clunk is imminent failure.
If this is a car you're going to drive every day, you are going to rack up tons of miles on it, you expect it to get door dings, you are going to beat on it rain or shine, it will be filthy sometimes, it will be parked outdoors, you're going to go autox-ing and to track days, save $5k for replacing consumables and getting seat time.
Most are somewhere in the middle, but this car taught me that I am 98% the latter. To my knowledge there is no significant change between '14 & '15 model years.
