Not sure about for life, but I tend to hang onto gear rather than selling it. So I still have my KLH-5's from 1968. That's a lifetime for many! My Vandersteen 3's date from 1992. My Magneplanar 1.6's I've had since 2000. There have been others in and out, but these are long-term relationships, and I appreciate them all. Doesn't mean I think any of them are great, but they each have a point of view on the music that I appreciate.
My main focus these days has been on the Magneplanars. I've actively bi-amped them with tube amps, added Mye stands, directly connected the drivers to my tube amp outputs with super-short wires... modded to the hilt and every step has brought new insights. Fun stuff, this hobby.
I've got an Eico HF81 that's in search of the right speakers. Oh, I've had it since 1971 (as a gift from my uncle, who bought it factory wired in 1959-60). Guess I'll post it as a question to the forum.
this thread has made me want to listen to more speakers! I admire the passion particularly of the Apogess owners (gotta check out the new North Creek ribbon: George Short used to be a designer at Apogee). I really need to hear some Green Mountain Audio stuff. And the JMR Offrande which i know I can't afford. Good stuff!