Honestly, because its a high milage daily driver and I was at least partly aware of the tire wear issues of Boxsters, I put on a cheap set of tires last time. (Primewell Performance... house brand of Hibdon's Tires). They were $288 for the complete set installed including tax and lifetime hazard protection. I've been pleasantly surprised. They perform and ride extremely well, and apparently wear normal to above normal.
This way, it won't be traumatic to replace a pair of tires every 10 months or so.
