How many miles do you intend for the tires to last? Mileage expectations are what you should be considering, rather than number of years.
You can drive the car very minimally and only put on 10,000 miles in 5 years and have the tires fail from dry rot with close to full tread still left.
You can put on 35,000 or more miles in one year and have bald tires.
I got 27,000 miles on the stock RE-050A's and thought that was pretty good for a tire with a 140 wear rating that I drove very aggressively, tracking the car, making lots of "performance tuning" high speed runs well over 130 mph, once or twice to drag limited 153 mph, and lots and lots of hard tire spinning practice launches working on 60 ft. times for the drag strip.
As stated earlier, it will be a trade off between how soft the compound it (stickier, better performing tire) and mileage (harder, more slippery performance). There is no free ride.
If you are looking for 40,000+ miles on a true summer ultra high performance, maximum performance tire, you had better start looking for the Holy Grail and the Lost City of Atlantis and while you are at it, see you can find the formula for turning water into gold.
All kidding and hyperbole aside, it is a compromise. Proper rotation and keeping tire pressure right may be more important than small differences in the maximum performance levels of tires in the same performance range for our speed rating and traction needs.
Edit: I see that you are now on aftermarket A/S tires. What is the tread wear rating on those? I went with Pirelli P Zero Nero A/S when I replaced the stock tires. Any A/S is going to give up a little absolute traction at the limit and have a little less sharpness on the turn in compared to a true summer tire. I made that choice because I'm in a climate where I do see some freezing conditions, but not enough to justify separate wheels and winter tires. Tread wear on the Pirelli's is 300, which in theory means they should last longer than the stock tires, but those numbers do not carry across tire brands, only within the same maunfacturer. But they should do a little better, provided I take care of rotation and keep the pressures set right.