Well i can only say i just bought the last pair last year . I'm changing now .
I have a BMW 530d 2002 , and i must say i must replace the rear tires every summer , i have another set of tires for winter , so an aprox calculation gives me less than 15000km for a pair of rear . The front lasts as long as 2 summers . They wear off way too fast . I don't burn rubber at all doing donuts or stuff like that . I just drive kinda fast out of town .
Think i'm going for Falken , it's half the price , and even if they last as long as the PS2 did ( thought i seriously doubt that ) i will be happy hence the price .