[Lil bastard]

There is really no absolute right and wrong in picking any of the popular brands of tires available for the Boxster.

People select tires for many different reasons. They are performance drivers, they are on a budget, they like the look of a certain tire, they want to follow the most popular concensus, etc. All valid, yet different, reasons.

Two most important things you should do, and do objectively, is to make a budget and decide (again objectively) how you will use the car (how you've been using the car is likely to continue, so use that as a gauge). Select the tire for the qualities you'll mostly need, not for those you might use 3% of the tire's life.

After making a budget and deciding on use, weigh in the other factors such as looks, popular brand, etc.

Hi-Perf Z rated Tires are more spendy. Do you need all the advantages these tires offer? Not everyone does. There are lots of Boxsters out there running perfectly well on M&S (all-season) and/or speed rated H or V. These can offer better, longer wear and are lower priced.

My car is not a daily driver, I use it for spirited pleasure driving in warm dry weather only. I use Z-rated tires. But, if it were a daily driver, I'd opt for an M&S Tire.

While it's good to hear others' opinions and try to learn from them, realize that for just about any tire mentioned here, there will be those who like them, and those who don't. Also, the Web is full of information on Tires and how to select them. Tire Rack offers lots of information.