Longo Lexus in SoCa (El Monte) allowed $5K on a UA Mileage Plus Visa towards the cash purchase of a 2006 RX 400h (in June of 2005). This was back when the 400h had just come out so demand was huge; we paid exact sticker (many dealers were getting over sticker). I had also put my name on a waitlist in January '05 with a $500 deposit (also on the UAMP Visa). It was better than a poke in the eye with a sharp stick. Great car.