I'm still using the first receiver I ever purchase back in 1977 (a Philips 7871). It looks a lot like 2x6's Pioneer, except it's a black version. I love it still. Only problem is it can be a bit difficult to fit into an entertainment centre or rack as it is a lot wider (21.5 inches) than the standard 17" or so width of most audio equipment the last couple decades. And with the big heat sinks hanging off the back of it, it is a bit deeper than most are today.

It's still going strong though.