i finally broke down and updated my old RX-V620 to the RX-A1000, but now found out its a b stock receiver. comes from yamaha. just wonder if that was a smart thing to do, being used and all. my old 620 has served me well and still sounds great, just wanted a little more power and ability to plug in a flash drive for my music. by the way i only paid $242.00 for it, i bought one and two others sold as well for the same price, was this a huge mistake, i can always send it back. or is this just a gamble, might last couple months or it might last forever.