I see that BenQ is coming out with a new line of projectors in March. I was planning on buying the 8700 after reading all the great reviews. The new BenQ model that is replacing the 8700 has twice the contrast ratio of the 8700. I am not a videophile. This is my first projector and I don't really know how important the contrast ratio is. Is this going to make a huge difference in picture quality? Or should I get the 8700 for a discount price?