Currently i have TX SR 505, never had any issues since i bought it 7+ years ago! its a good buy if you want to set-up 7.1 surround sound and your DVD/BD player has 7.1 analogue out(else, you may have to rely on the AVRs DSP). 15k may be high for this system as it's debut price was around 21k after discount when it was launched. Negotiate for 12K not more than that.