My Yamaha from 1998 RX-v992 still works fine. Cleaned the volume a couple of times. It however has transitor amps and no hdmi.
A got a low end Pioneer in a out 2005. It somehow gets weaker as time goes by and required tuning up the volume more and more. The remote volume has died but works manually.
I bought a Yamaha A-730, pre on board wifi. The main board died about 4 years in and I got it fixed for about 60% of its price new. It's still working fine. I was disappointed by its failure since it was a "premium" Aventage.
I also have the grand pappy Yamaha R-9 from 1984 that was the first av receiver by Yamaha, but still two channel @125 watts @. It works well except that the fm memory supercapacitor has worn out and sometimes the fm chip conks out, and it's volume needs cleaning annually.
My conclusion is that modern chip based AVRs have much shorter lives caused by the limits of the chips.
