I am in the market for a new receiver, and I don't know where to buy. Should I buy from a local retailer, or buy online. I have been told that if I buy online, the manufaturer warranty is void because they sell for less. I am pretty sure that I want a Yamaha RX-V1300 receiver. It seem to have everything I need. I need: 6.1 decoding At least 2 digital coax imputs The rest speaks for itself. Please give advice! Thanks in advance.