I own an old Yamaha A-500 "Natural sound" integrated amp (from college days in the 80's). I recently went to purchase a new Yamaha RX-V550 at a dealer. He told me the old amp would demolish the new reciever for stereo sound becasue "they built them better in the old days". I would like the option of home theater but will play normal stereo most of the time in my 22 x 16' living room. The dealer says I'd need at least a Yamaha RX-V1400 to approach the sound quality from my old amp. Is he right about this or just trying to sell me equipment for twice the money?