I'm torn between choosing a HTR-5740 and HTR-5760. There is a price difference of $150 - $200 between them. But is that money worth it? I know once is 6.1 and the other one is 7.1 and I guess 6.1 is sufficient for me. Apart from YPAO and the 4lbs difference in weight, is there a pressing reason why I should for a 5760?