Porches always were a little more expensive that other cars but it was only the last few decades in which they started to get crazy expensive. So, considering how "affordable" the original 911 was, the Boxster isn't too far off from that. Or how about the 944? IIRC, the 928 wasn't super pricey either.

Now, if you hate the Boxster because any old Subaru WRX will beat it for a fraction of the price, then you may have a point.