Lexus wants almost $800 a pop for the AFS HID headlights in my IS350. They're over $1,000 a piece w/o the discount I get. I'll keep polishing at that rate. Mine don't require all the sanding or anything, I just hit them with the buffer every time I detail the car. I wish I knew the end all cure as well though. Frequent application of 303 Aerospace slows it down, but the inevitable still occurs.